Do I look my age?

I always got curious if I looked my age, as because a lot of people who are older than me think I’m older. it’s not something new at all when I was 13 quite a few of boys that were seniors and college freshman that I was the same age as them because I was “mature”. But now that I’m 19 I work at a bar/restaurant and I get hit on by elderly men that could be my dad or granddad lol and when they ask my age, they get shocked that I’m not 25 or 26. But yet one time a customer told me age is just a number and that that time I was only 17 but till this day, the customer still comes in and hits on me. So do I look 19? Or older? Sometimes I feel as I look 16 still just with tats and piercings now lol and I’m not complaining because at least I look like I barely aged when I’m older.