20 year old with a 17 year old?

Do you think it is right for a 17 year old to be with a 19 almost 20 year old? Even if family approves does it sound weird?

Edit: yes he’s still in highschool. I have been wary of the age gap and after telling my friends today, they said I’m a cougar and pedophile for even trying it. When I was 17 my step mother was trying to get me to date up to 24.