I am starting to think that maybe for a man it is a good idea to have kids in late 60's early 70's.
You get to spend your hard earned money on them without a care in the world. You get to see them when they are the cutest. They will keep your brain active because you want to be there for them and teach them new things. Hopefully you croak once they reach 15 years of age so the chances of them giving you heart attack or dementia at that age are low.
I'm 51, so still got some time to think about it, but I think that's the way to go.