Is 13 too young for heels?

because i love mary jane heels and pumps and ankle boot heels partly because i'm really short, but is it too young? people say i look like i'm 15 and i usually wear them on days when there's a volleyball game (we're required to dress up) but is it too young to start wearing them all the time?
Update: just clarifying: i don't wear heels (in a casual outfit) with anything but jeans =(
i'm not a slut, okay?
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