Legal drinking age in PLAYA CALETA VARADERO CUBA?

I'm not 18 but can p for it. I've never been on vacation before, let alone even a plane. But i'd just like to know how old you have to be to drink there. I've heard all sorts of ages, 16, 18, 21. I don't know who to believe. I'd like to have someone who's been to Cuba to answer, or someone who lives there. Do they give you some sort of bracelet that makes you noticeable that your a minor? Not that I'm going on this vacation to drink, I'm just curious. I'm the youngest, and it sucks! Ha ha, thanks for helping out.