Women "more likely" to drop out to provide childcare doesn't make it "100% women". But without fixing problems of families with small children (lack of affordable childcare, culture of long hours and such), anti-discrimination laws only create more discrimination and stereotyping... All women would be stereotyped as risky. I've known quite a few men providing childcare and needing flex hours, while their wives are too busy at work. Yet, such men are stereotyped as an exception. Because asking questions and deciding on a case by case basis is illegal, so it's a breeding ground for stereotyping.