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?
I never feel inconvenienced by having to wear clothing. I suppose part of that is because as a man, I can go shirtless without getting stares and I wouldn’t want to be without underwear (for support) even if I were on a deserted island. I wonder what the circumstances you have in mind are in which you would like to have the option of being nude in public.
Edit: Now that I think about it, there have been a few times when I wanted to go swimming and just swimming in my underwear wasn’t an option because I would have to walk while wearing it later and that would be uncomfortable.
In addition to your example, I’ll think of a few of my own: