[tommi]

If you are 50 years old, your kids are likely to be old enough to get to home by themselves.

Personally I'd hate to work in a place where it would be considered odd to take care of some private business during the day every once in a while. Stretching and leeway goes both ways.

[MattGrommes]

That's not as true any more. I know a number of couples that "started late" and will be in their fifties just as their kids enter the ~10+ year old age range where after-school activities ramp up yet the kid can't drive. People having kids later is probably going to be another of those slow social changes we'll all have to adjust to.

[mgkimsal]

Divorce happens. People remarry. Many people in their 40s and 50s have toddlers or young kids.