How to fix underage drinking

I don't see the point, because they are not actually drinking it ingame. There is a disconnect between some things.

Well it's against the game rules to do so ... you guys are always so strict on chat rules I thought you'd want to help enforce this rule 

That is why I am saying that there is a disconnect between things. They aren't actually drinking the thing in the game. It is just an item to give points for drinking and eating.

The disconnect is that the items can be considered non canon, while through roleplaying in topics, then those things are canon.

In regards to being strict about chat rules, then that is just to make sure that the chat is a nice place to be for everyone, where as the drinking an item doesn't really impact other things than a bar and is not something your character actually does inside the game.

These things depend on the site in question as well. Some sites have stricter rules than others regarding this. ^^