How old were you when you lost your virginity?

I’m 19 and I’m a virgin. I just wanted to have sex with someone I was dating, not a hookup. I didn’t date in school so I could focus on the work. Then I just never had a real relationship, I talked but it didn’t go anywhere. Lately it seems like guys get scared when they find out I’m a virgin. Like I didn’t think it was a big deal. One guy apologized and I’m thinking “why are you apologizing?”