i was 24 when i got pregnant and 25 when he came along and people STILL said i was too young for a baby. Mom was 28, DH's mom was 17 when she had her first, and 19 when he came along.
DH was only 22 years old when DS was born and of course he got flack from his buddies about not going out to pary and drink and act like an idiot. We were married when he was 20, so he had to hear the 'ole ball and chain' and 'you can't run wild with women' junk too.
DH isn't into that anyway, not even when we were in college. Of course he had his moments, but he was never a 'party animal'. He'll be 25 in February and still has no regrets. He's the proudest father I've seen and that's the best thing for me since I have no clue who my own father is and 90% of my family was raised by single mothers. No matter his age, he's a good man (and that's his last name!), a great father, and a great husband. Shouldn't matter what his age is.
We still get stared at sometimes, and told we were too young to have kids, but geez, we weren't THAT young. Still amazes me how people love to get in your business.