Age and dating

I’m a senior in HS (I’m almost 17) and my boyfriend is a sophomore in HS (he’s almost 16)... it’s hard explaining to people that even though we’re two grades apart, we’re actually just a little over a year in age difference... Is it weird that I’m older than him?? Some of my friends were a little confused when we started dating bc they said it’s not normal for the girl to be older than the guy... thoughts??