>>214386222 (OP)
I think ideally the man should be 5-6 years younger than his wife. So a 20 year old man and a 25 year old woman is perfect.
First, because while I feel bad for any woman who has a son, men are necessary for society to function and we should try to maximize their chance of not being autistic.
Second, because we live 7 years longer anyways. That's why it's insane to marry some 40 year old guy in your 20's. He'll going to keel over and you'll have two decades as a widow.
Third, because a lot of guys have trouble reading the room and learning proper manners(esp if they were spoiled by their mom or only had brothers) so they should be under their wife's tutelage before their brain ossifies. It's rather like how you're supposed to teach languages early because it gets harder to rewire your brain as you get older.