It may just be a question of cultural acceptability. I visited a few European countries (Germany, France, Belgium) where it seems very acceptable to park on sidewalks. They even have road signs telling car drivers that they can just hop on the sidewalk and park there.

Yet, I'm in Québec, a North American stroad paradise, and parking cars on sidewalks is usually a no-no. I don't think there is even rules to allow this. It's just generally not acceptable and those doing that will usually get a fine. It still happens, obviously, but I very rarely see a row or cars parked on the sidewalk. However, the acceptable part here, is that people will park their mobile living rooms on bike paths. Separated or not, we even need bollards and chicanes in some places to physically stop them. And unfortunately the police tolerates this. In fact, they also park on bike paths.

I envy you if this is not something common in Sweden.