How common is it for guys (even a teen) to get emotional upon holding their babies for the first time?

How common is that? For a first time father to get very emotional and cry upon holding his baby for the first time?

When my cousin was 16, he got his HS girlfriend pregnant and became a father at age 17. Their baby daughter is now 5 years old and still has his same ginger hair, green eyes and freckles. She's the female version of him while looking nothing like the girlfriend.

When he held her for the first time, he literally broke down. He also said she looks just like him and cried for several minutes. He was only 17 back then and he got emotional.

How common is it for guys (even a teen) to get emotional upon holding their babies for the first time?
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