Have you ever been in Sweden? Swedes practice social distancing in regular daily life. Also, it is a very introverted, borderline anti social type of society.
I had a couple of French co-workers that said it was very hard to form friendships outside work there (in Stockholm), while in the US (NYC) they had no problem.
Compare this to Italy, Spain, France, Greece, Albania, or other Mediterranean countries, which are polar opposite. People are friendlier, that talk to each other more, they hug, they kiss more.
If you go to smaller towns, you regularly see older people hanging out with each other, playing chess and socializing. You just don't see that in Sweden. I think this is one of the main reasons that some countries like Germany and Sweden are not fairing that bad, but the south gets hit harder.
Also, from my understanding, many folks in Sweden are practicing some form of social distancing, and many are working from home when they can. It is a 'voluntary' type of thing. Swedes tend to follow civi rules well in general, and are a homogeneous society, so I think that is contributing to the lower rates of transmission as well.
while the US attitude varies from wear a mask, to 'don't take my freedom away', i do what i want, type of attitude.
Ps. Here is what bus line looks like in Sweden (before the pandemic): https://i.redd.it/4q36jg5ofi831.jpg
Their culture just wants/respects people spaces more, and are more 'introverted' by nature. Swedes are friendly/polite, but not necessary 'warm'. And you can see with their social interactions as well. Hope that makes sense.
Good luck trying to replicate that type of distancing in most of the Europe or the US unless it is mandated (i.e. you will get kicked out of a store if you don't respect the line).