Plenty of people like to keep a separation between work and a social or family life. My employer has an outing once per year, but little else -- most staff either have a young family to go home to, or a social life outside work.
[NB: European in Europe here.]
You'll have easy union and HR support if needed and most people in such positions just want to get the job done and stay out of eachother's way, that attitude leads to friction minimization as a strategy instead of personal lives getting in the way of things. So if not caring is good enough for you, then it's possibly a good move.
As others have said, a workplace that involves more intermingling of social and work lives seems more likely to cause problems.
I'm not sure if you mean this, or if you mean a meal in the evening (or a weekend) every couple of weeks. I've not heard of any companies that regularly do the latter. We do this once a year, with a traditional Christmas meal -- pretty much everyone goes to that. There's also a summer event, about 3/4 of the staff go, mostly bringing their children as it's more likely to be a barbeque or picnic etc.
Sometimes, two or three or four of us go to a bar on Friday together, but it's not a team event. It's always less than half the team. It usually means leaving work 1-1.5 hours early, so my colleagues with children don't get home late.
Firstly, I spend all day with these people as it is and while they are perfectly easy to get on with and have a laugh with, my lunch time is for me to eat and catch up on my reading.
I really dislike cafeterias in general. They're too noisy, bright, uncomfortable and I would much prefer to just go and eat in peace and quiet.
I've been out with these people like a dozen times for meals, nights out leaving parties etc. but once or twice a week? That's way too much. I have things I like to do in the evenings, like exercising, playing learning guitar or improving my development skills. I also have a partner I wish not to neglect.
I'm totally fine keeping my work and colleagues separate from the rest of my life.
In a perfect world, none of that would be affected by your social habits, but our world is an imperfect place.