Exactly, Northern. My DH was 24 and he was so excited about becoming a father. He was far more mature.
He always made sure I took my vitamins, chose clothes and sheets and stuff for DD1, the whole lot.
After she was born, I had been awake for 32 hours and had a forceps birth. I fell asleep/passed out and he just held her and walked her round.
Some men are goofballs now as they can play like infants all their lives.
In the past, often, a man had to behave like one from an earlier age.