We play too many teams who arent old enough to drink with us. I think it's a good tradition, speaks to sportsmanship.
A team that drinks together wins together.
We still do it and I'm pretty sure every team we've played has done it as far as I can remember (VMSL Masters).
Personally I'm of the opinion that it should continue as it is a show of respect for the other team as well as the sport... if you stop doing it, then people will say eventually why even shake hands, we can talk afterwards with a pint...