That mentioned, it is fine to encourage or recommend someone to stop, but not to force.
So carry on.
Drinking is a big problem in today's society, therefore it is within my humble opinion that we shouldn't encourage someone to do it.
And I really can not find any fun in getting drunk. Sure, you can go out and have fun. Sure, you can go to bars or whatever, talk, do something, have fun. But that doesn't mean you have to drink.