At a confectionery house with more than 120 years of history, a woman who was appointed managing director was repeatedly met, before and after her appointment, with the same phrase: “Manufacturing isn’t work a woman can do.” “Women can’t do this.”
Why does this phrase survive every time one of its justifications is debunked, simply by putting on a new one? The answer starts from a single fact: it was never really an aptitude judgment to begin with.
A Case: The Heir Who Wasn’t Supposed to Exist
Taken at face value, as a claim about aptitude, the statement invites endless investigation — physical strength, tolerance for long working hours, familiarity with the shop floor. But the more closely each justification is examined, the more it either collapses outright or turns out to be tracking something other than sex: capital investment in equipment, the distribution of caregiving responsibility, years of accumulated experience.
The real puzzle is not whether any of these justifications is true. It is why the same phrase keeps being reached for, generation after generation, even though none of its stated grounds survives scrutiny. Answering that question is what finally reveals what the phrase is actually doing.
This Is Not an Aptitude Judgment. It Is Social Closure.
Max Weber described the process by which privileged groups restrict access to resources and opportunities to a limited circle of eligible insiders as social closure. Frank Parkin extended the concept, arguing that whoever controls closure selects, opportunistically, from whichever available attribute — race, language, origin, religion — happens to be most useful as a justification for exclusion at that moment. The attribute itself carries no inherent significance; what comes first is the motive to exclude, and the attribute is attached to it only afterward.
“Manufacturing isn’t work a woman can do” fits this pattern exactly. What is actually being protected is preferential access to a scarce resource — executive authority — and sex functions merely as the marker used to decide who gets that access and who is kept from it. Telling in the source case is that the elder brother, as a candidate for succession, was never even mentioned as a possibility; the premise that “a man could take over” was never questioned, while only the woman’s succession drew the word “impossible.” That asymmetry alone is evidence that the friction here is not about competence — it is about redistributing an entrenched privilege.
Why the Justifications Only Ever Arrive After the Fact
Psychologist Ziva Kunda proposed a model of motivated reasoning: people arrive at a desired conclusion first, then search memory for a justification plausible enough to persuade themselves — and others — that the conclusion was reached rationally. People are not free to conclude anything they like; they are constrained by their ability to construct an argument with a minimum of surface credibility. But that also means the content of the justification is endlessly replaceable, so long as it clears that bar of plausibility.
This explains why the grounds for “women can’t do this” slide so easily from claims about physical strength to claims about working hours, from claims about authority to claims about experience, each time one is debunked. The desired conclusion — that women should not hold executive power — never changes; what changes is only whichever argument seems most persuasive in the moment. Refuting one surface justification at a time does nothing to the underlying structure, because what gets refuted is a tool, not the motive that keeps reaching for it.
The Five Surface Justifications Are Just a Toolbox for Closure
Recast this way, the five surface-level justifications hold together as a consistent toolbox for legitimizing closure, even though none of them survives empirical testing on its own.
The physical-strength argument
Manufacturing requires brute force women lack, the claim goes. In practice this displaces what is really a question of equipment investment and process design onto a sex category. Tolerance for physically demanding tasks is, at bottom, an individual trait; treating it as a sex-linked trait is a textbook case of statistical discrimination.
The working-hours argument
She can’t handle the overtime, the claim goes. This rewrites what is structurally an unequal distribution of caregiving responsibility as though it were a personal deficiency. The subject of the sentence has been quietly swapped.
The authority argument
She lacks the charisma, the claim goes. This works to preserve top-down leadership — the style that incumbent power-holders happen to be good at — as the only legitimate model of management. If a more distributed, delegative style gains credibility instead, the relative value of the incumbents’ own skill set falls. What Rosabeth Moss Kanter called homosocial reproduction — the tendency of those in power to keep selecting people who resemble themselves — is the organizational mechanism that keeps this particular justification alive.
The experience argument
She doesn’t have a feel for the shop floor, the claim goes. This recasts what is really the “outsider effect” experienced by any new entrant, of any background, as a specifically female deficiency. In practice, outside experience is often credited as an asset rather than a liability — the opposite of what the argument predicts.
The statistical argument
A 2026 survey found that 65.4% of female successors report that their sex affected how they were treated — the most easily misread of the five. What the figure demonstrates is not that women’s managerial competence is inferior; it demonstrates that surrounding bias is real and persistent. Turning a correlation (women who succeed to leadership often report differential treatment) into a cause (women are therefore less suited to manufacturing) is a classic logical leap. If anything, the number is itself evidence that the closure discourse is still operating.
What the Numbers Outline
Women currently hold roughly 7.8% of company-president positions in Japan. Yet in intra-family successions specifically, some surveys find that the share of newly appointed presidents who are women exceeds the corresponding share among men. Only once the external pressure of a succession crisis becomes acute enough does a previously closed circle begin, partially, to open. That contrast supports the reading that the barrier here was never a wall of competence — it was a structural wall that moves only when forced to.
Research on family-business succession has examined how small and mid-sized family firms transmit non-financial value — so-called socioemotional wealth — across generations, and how the successor’s sex factors into who is deemed a legitimate heir to that value. That judgment of legitimacy is exactly where the mechanics of social closure play out in concrete form.
A Structural Parallel: Male-Line Imperial Succession
This structure closely parallels the logic behind male-line-only imperial succession. Just as “bloodline” and “tradition” — words that sound neutral on their face — have functioned as devices for locking access to the scarce resource of the throne within a particular lineage, “aptitude” and “physical capacity” have functioned as devices for locking access to the scarce resource of executive authority within one sex.
What the two cases share is this: an attribute (lineage, sex) is presented as though it carried intrinsic legitimacy, when in fact that attribute is being deployed, after the fact, to justify a boundary that was already drawn — a boundary determining who gets to access the resource in question.
The Question Isn’t Aptitude. It’s Who Controls Access.
As long as “women can’t do this” is treated as an empirical claim about competence and investigated on those terms, the argument will loop indefinitely — its justifications reshuffling every time one is disproven, never running out. That is because the statement was never really an empirical claim to begin with. It is a tool for maintaining social closure.
The right question is not “does a woman have the aptitude for manufacturing.” It is “who needs this statement, and what are they protecting by making it.” What one heir to a long-established family business actually had to overcome was not a wall of physical strength or of working hours — it was this closure structure itself. And the fact that this closure has not yet fully broken down is confirmed both by the words directed at her and by that 65.4%.
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