And of course, the persistent retirement gender gap (men and women retire at the same age and are expected to contribute as if they lived the same lifespans, but women live considerably longer).
I'm pretty sure that the numbers are even more skewed now. They are even more skewed at the elementary level, of course, just like the teacher numbers.
If you doubt this, read some of the (fairly heartbreaking) tales of single fathers of small children. Among other things, they have great difficulty getting their friends' kids to come over for play dates, etc.
I don’t really think there is any rationale that I’ve seen that convinced me that any job should have any gender ratio split, or that we should increase or decrease such ratios that were scientifically based. There are certainly social or political ones, however.
2.) There is huge bias and stigma against boy acting girl-like. So yes, at minimum little boy playing with baby will be mocked more then girl playing with car.