Just recently we had a team event that revolved around alcohol, a mixology class. Although attendance wasn't mandatory, it wasn't exactly optional either. So there was a lot of awkwardness considering a number of people on our team were non-drinking muslims, 1 person was pregnant, and several others just don't drink. This creates an exclusionary sort of culture, and as one of my coworkers said it "I don't really want to be forced to go to the bar with my middle aged male colleagues". If you think about it, it does seem a bit creepy.
Other industries have moved on from this sort of model. Sure, there still can be alcohol at events and the occasional BBQ with beer or happy hour, but they have strict policies about returning to work after consuming alcohol, and alcohol is not the main focus of the event.
I take full advantage of the beer keg at our office, but if it went away I certainly wouldn't be upset. I'd just do what I used to do, and go to the bar after work with coworkers who want to go.