At least in the NYC startup scene, I’ve noticed a tendency for coworkers to spend a lot of time together outside the office. I used to do it, too. Not just the occasional Thursday evening beer, but every weekend, or even several times a week. They treat it as their main social circle.
I’m a programmer, but coincidentally most of my friends are artists. I enjoy that they’re not particularly invested in what I do, but I still feel appreciated when they sometimes ask about “how the internet works” or “what really is coding anyways?” I can be a “tech guy” but not make it my entire identity.
Overall, I think it’s better that when I’m with friends I get to talk about the other aspects of life, and take a break from being constantly tech-focused. And, of course, get my mind off of work for once!