A lot of the things we do on a daily or weekly basis have ways of doing them that can either be private or communal, some of these which we do not think to consider as having that characteristic.
For example, bathing in the Roman Empire used to be communal, but then Rome fell and citizens in the splinter countries began taking baths privately.
Receiving mail is another example. There are countries which don’t have mailboxes and everyone gets their mail at the post office in the PO boxes. It was the United States which pioneered the idea of the modern mail system, which is why we associate it as a private act.
There are activities as well which don’t have any history as jumping between one or the other that might benefit from it, for example I think towns might benefit if internet was free and freely accessible but only at the local library.
What’s a non-communal aspect of life you think should be communal?
Laundromats are minimal-involvement small businesses, so not communal in a strict sense of the word.
In a more social-oriented society, I could imagine a communal laundry being part of a social hub, people could meet up and play games, watch movies, etc while waiting for laundry.
Hmm… you know what, that actually sounds kinda delightful!
In college there was a laundromat with a diner that served decent burgers. Was always a treat.