I don't see any 'shame, shame, shame' in discussing the issue.
Apart from the 'flaps' comment, which was below the belt, other people on both sides make some valid comments.
It is an undeniable fact that our environment, especially at the front end, is male dominated, and 25 years ago, females infiltrating our male bastion were rare. These days less so, and whether it's good or bad depends on the individual.
As for mums with kids flying, and it's a generalization based on a small cross-section, but whether it's the maturity of having kids, or that in general they have to be just that more organized than us fathers who walk out the door and leave those problems for our wives, but I've found they are better to fly with than some of what others may term silly young girls, and for that matter some of the guys.
And as for time with the kids, yes there are many days away, but that I believe is well made up by periods of time with them back at home between patterns.
So as far as this myth goes - busted!