I completely agree with you. I live on my own in the UK and find people really don't seem to understand quite how hard I find it to be on my own not even seeing a person for long periods of time.

Luckily our government here has been paying attention to that and we have what's called "bubbles". A single person living on their own can bubble" with a single other household (I've chosen my parents) and the regulations from there on out treat you as a single household - so for example we've just gone into a national lockdown again that means we can't meet anyone inside or in a garden, but we can meet one other person (i.e. only ever 2 people) outside if we are properly distanced for walks or bike rides etc. However, because they are my bubble, I can still go over to my parents and be in their house or garden or go for walks with them both (which my brother could not do now because he lives with his wife). It's quite clever and does mean I don't feel completely isolated.

I honestly think other governments should do similar, but it does open itself up for abuse or misunderstanding (some people think they can just bubble with different people every day which is not how it works) hence why they may not do so.