If you're going to walk around acting like a self-righteous pr*ck because you are doing it dry this January, people will hate you. Deservedly. Do dry January quietly and happily. Then you will still have friends in February. Always a bonus.
There is a large section of society who are violently allergic to the concept of non-alcoholic beer. I also know the most common misgiving is the whole "What's the point?" question. With comparisons to sex without the orgasm and coffee without the caffeine it is a difficult sell for most people.
Like many of you, I'm a married, employed white male with two children under the age of five and a mortgage. Which means that, like many of you, I'm about two glasses of prosecco away from qualifying as a functional alcoholic.