I have a fairly high tolerance. I get buzzed quickly but don't really get drunk unless I go overboard. Honestly, though, it's really just about being smart. If you go out for drinks with the express purpose of getting wasted, then I can see how being a lightweight would be a problem. If, however, you go out to have a good time, maybe watch a game or something, and share a meal no one is going to be counting drinks anyway. A lightweight can last just as long as a big drinker if they space things out and don't chug their alcohol down as soon as it hits the table. Besides, and either way, I just don't see the appeal of getting stupid drunk no matter how long it takes you. Moderation no matter what your tolerance allows you to get the buzz of the drinks that makes the outing a fun one but without getting stupid.