It's possible for a short period. It's not possible for years. We won't do it. Really, we just won't. I can't be clearer on this, I consider it pointless, frustrating even, to discuss - it feels like arguing against a strawman - if you think that humans will simply stop mixing for years on end, viewing each other through a screen or far away enough that we can't even smell each other, there are really only two explanations in my mind:
a) you have some atypical neurochemistry which means you don't/can't understand human socialisation properly
and/or
b) you're locked inside with your family and so you can't "feel" the dread that millions of people are feeling right now, wondering whether they'll ever touch another human again
For me, it's an urge almost as strong as the urge to drink water. If you refuse to take that on board and just pretend that people are being irrational because your brain doesn't work that way, you're going to remain confused by this.
If you don't want to go to a language class, a theatre, a gallery, a pub, a cafe, sit on a bus, a train, a restaurant, go on a date, have children play in a playground, work in an office, and so on and so forth, for years, or you want to replace them with some wanky dystopian "social distancing" version in which you sit behind screens, wear masks, and have 10 people in a hall built for hundreds, that's cool, you do you. I'll do it for a few months, I won't do it for years, because that represents the imposition of a >2% mortality rate on me anyway by removing all of the good parts of life. My response to this is pretty much "OK introvert", you know?
That over with;
Of course, I do think that we should, for a few months, attempt to reduce the spread of the virus, via whatever measures are reasonable!
I strongly disagree that the status quo of "you can get on the tube to go and work in a supermarket, but can't cuddle your partner" is sustainable.
There's no guidance. As I've repeatedly said, we need a plan to deal with mental health _right now_. Not next week, not "if the R number goes down", not "if Boris has a good day", we need a date at which it will be legal for people to have autonomy and decide whether they want to take the risk to visit their friends and family, and to make new friends.
Notice, by the way, that you're not giving any concrete plans for this in your post - it's all wishy washy "oh, well, we might do this, or I suppose that, well maybe" nonsense. There's no sense of urgency at all. You're really not understanding that many, many people would rather die than live in a dystopian world in which people treat each other as virons. A few months, sure we'll take it. A few years - completely intractable.
We were urgently locked indoors, the world was turned off, and now our needs are being ignored with this child-like "we're not there yet, darling" fluff.
So again - I ask you - what's the plan for long term partners meeting each other? Family members? For dating? For meeting new friends? Do you have one? You do realise that the Government has literally broken up families so that they can prioritise the flower shop opening?
Or are you going to twiddle your thumbs and moan about people breaking the lockdown whilst giving them zero indication that it's ever ending (and seemingly actually _enjoying_ it?)
When people bottle up mental health issues the inevitable result
is a release like a pressure valve.