My lift driver thought I was a teenager and Idk how to feel

On my way to get my hair done and the lift driver (older lady) asks if I’m going to school. I say no hair shop. Aren’t you going to be late to school since you’re getting your hair done. I say Im not in school I graduated college earlier this year. She say oh you look so young, I thought you were in like high school or something.

Now you’d think that’d be a compliment but it made me feel I don’t know, weird. I tend to feel small, intimidated or like a teenager around folks older than me (Im 22). So while she meant nothing by it, I just felt bad about the comment.