Should I stop using sun screen in order to look older?

I am in high school and some people think that I look like a 12 year old. My mom always makes me where sunscreen but I heard that tanning makes you get wrinkles. Will I be able to buy beer if I stop using sunscreen?
Update: I don't drink, I just wanted to buy some beer to look cool. I also don't smoke so lay off the unnecessary lecture.
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