That depends on what you mean by drinking. Do social drinks count, or is this about getting totally pissed and getting thrown out? Personally, I'll grab a few drinks with the mates every now and then, and occasionally get totally wasted, too. Can't really say I drink every weekend, but whenever there's a special occasion where drinks are served.
OP: I agree with the others, choosing not to drink without ever trying it seems a little silly to me. You can have a lot of fun when you're a bit tipsy. It's not always about going dead drunk and passing out. Like I said, social drinks are cool, too, to loosen up the crowd.