Yes, I absolutely agree....socialising has definitely changed since COVID. I'm older and don't have any children around the house, so it isn't that.
Before COVID people would just knock on the door and come in for a cuppa. Or I'd see someone in the village and say, drop round tomorrow for a coffee. These days people don't do that, and if I ask, folk would rather "go out" - usually to a local coffee shop, or garden centre, or whatever.
Before COVID, there were lots of evening groups....painting, flower arranging, language learning. Now there are very few. Many local adult education courses have shut down. All the learning courses have gone online, which to my mind isn't the same as going somewhere and learning face to face. But I suppose it's easier for the tutor and I guess a younger generation are used to doing everything through a screen. I suspect all the meetings/schooling etc. which occurred online during COVID precipitated this change.
Ditto the local church. Niche I know, but nevertheless... Meetings online. No evening house groups. Even services streamed online. No-one seems to want to go out and actually be somewhere in person!! It wasn't just a service, it was getting to know likeminded people and make church friends.
At our local village school, even the governor's meetings went online; before we'd go up to the school and discuss things face to face. Have a coffee and biscuits, get to know each other. I finally gave up after the changes, too much online and no chance to really get to know the committee.