I'd have to agree with most of the points already posted on here. There is an age aspect to a daddy, but it's not a hard line. Older and hairy always add to the daddy factor, but most of it is in the attitude. A daddy is a man who can take charge, whether or not he is dominating, and lead his boy. I like it when daddies are a bit rough, but careful to assess the needs/wants of their boy, and never take the boy beyond what he will enjoy. It's about mutual respect between the men, and a good daddy will push a boy, perhaps introducing him to new things, all while respecting the boy. There are a lot of little things that go into a daddy, but in my opinion these are the larger aspects. For me, it's less about age and more about attitude.