I work for a "health and wellness" company and my team has a monthly "Thirsty Thursday" where alcohol is the main event, so I definitely don't think you are going to escape it by switching jobs. I've worked here almost 1 year and have only gone to 2 Thirsty Thursday events. There hasn't ever been any pressure from my colleagues to attend, though. And, if you do decide to attend, you don't have to drink alcohol. If they ask you why you can say any number of things. For example: "I don't drink." seems to be well understood. Good luck, it's not always easy.