My father is young (he's already a grandfather too), is that rare nowadays?

It's one thing for the mother to be young but my dad is young too.

I'm 25 and my parents are both 43 year-olds. They had me in their last year of HS. Two years later, they had my sister and now she's a mother of a 4 year-old. So they became grandparents at just 39 years old.

Nowadays is rare for a guy to already be a father when he's not even 20 yet?

My father is young (he's already a grandfather too), is that rare nowadays?
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