[dave8721]

40 is too old to have a kid IMO (biologically getting close to actually too old to be safe for a woman at least). I had my first at 31 and 2nd at 35 and i noticed my energy level dealing with a kid was already lower at 35 than it was at 31. I can't imagine it at 42. Or dealing with a non-sleeping newborn at 50? Dealing with a rebellious teenager as a 65 year old? Paying for college right as you enter retirement?
Back in the 1950's when people had kids when they were 22-25 by the time they were 45, their kids were already out of the house.

I agree 20's is too young. 30-35 is the prime age for kids in our current society.