he has some secrets. pls help

we're in our teens and long story short last night we had a convo abt dumb shit he's done before. turns out he got a bootleg tattoo in the begining of the year, he smokes weed, and he's drunk alcohol before. I've had bad times with an alcoholic father, so I made it very clear that he is never to get shitfaced around me and that I strongly disagree with what he's doing, and that I'd leave him if he got drunk around me. am I being unreasonable? the tattoo and the weed don't bother me that much, imo the tattoo was a fucking dumbass move but it happened and all he can do now is get it covered up. weed isn't bad for you either, I just don't think he should be doing it at this age. I can't control what he does, but goddamn. I won't tolerate him becoming like my dad. what do you guys think???? I really love him and as with any relationship I know well have our ups and downs. is this something we can move forward from?