I discussed this topic with a boy on a date-believe it or not.
He was 23. He said “I live in a dorm- there is NO WAY that boys should be getting married younger!” And he was a mature boy himself. He said that he sees boys who are married with kids, and they are so immature that he wonders how they’re married.
Not saying that those boys won’t be the same way a few years later, but give them a chance to grow up!