[It isn't the first time he's heard that before. At home he's a young-looking fifteen, about to be a young-looking sixteen.]

Yeah, well. ...Bare minimum, even with all the other age weirdness, I'm a sophomore in high school? I-I even have my driver's permit! Though I, um. Haven't actually done a lot of driving yet.

[It's not a very compelling argument, but he's definitely been mixed up with middle schoolers a few too many times.]