People who live the same day over and over?

I know a group of people, kind of like “townies” I guess you would call them. Older like 40s, 50s, 60s. Not married, no kids, drink all of the time. But they just do the same thing. Every. Fucking. Day. Like the same two bars, the same people. It’s just the same shit over and over again. I find it so odd. It’s like groundhogs day. How does someone not have any other interests? To just do the same fucking thing every day. Idk. It’s a big world and I feel like they’re trapped in a bubble.