> 4. (experimental) I don't drink, which does curtail my social opportunities. I'm considering updating my drinking policy this year. My hypothesis is that the benefits of having a strong community out-weigh the health benefits of abstinence.

This is a very mature, balanced take. If I may advise: Try some experiments on yourself. You already know how you feel and how you socialise without drinking. Try drinking various amounts in different social settings. How does it feel? Do you like yourself and your life more before? Then go back. Else, continue experimenting until you find a sweet spot.