Needless to say, enforcing the actions by the police/military are only needed because of these groups of people. This is why the Finnish strategy, "we only give suggestions and trust people follow them" is a catastrophe.
I don't know a lot about Finland, but a bit about nordic countries in general, and I would have expected people there to be a lot more well behaved than this. But maybe it's just a small fraction of all people (but in that case, that would not be as significant a problem as it is?) Or maybe the Finnish are just obnoxious? Or something.
Finns are likely to protest somewhat less than what Italians did at the beginning, but many do protest here, like everywhere. So the difference isn't an order of magnitude thing, I think we are quite average here when it comes to being selfish at the expense of others. I think you need to look at certain Asian cultures to see a big difference in this behavior. Though, this being said, even these countries (and they especially!) rely on actually enforcing the rules by the fear of actual sanctions, even if they "might" not need it. Funny thing, isn't it?
"Losing face" is a big thing in some Asian cultures, and it works to some extent here, as well. But this can go both ways; at the early phase of this kind of epidemic, certain social bubbles form, and one of them is the "lallallaa overreaction, I don't want to show I'm scared, not overreacting, lallallaa". So in order not to lose face, you need to pretend living like usual. I think this happens everywhere in Europe to some non-meaningless extent, including Finland; just wittnessed today a few middle-aged guys at a store loudly protesting how stupid this overreaction is because "we have only one dead" (the correct number at that time was 3, as corrected by the cashier, and currently is 5). These people existing is the reason why we need to enforce the rules.
Actually we had some opinion poll numbers how the people here see the actions of the government. I forgot the source, but they were approximately like this: 45% thinks they underreact, 45% thinks they react in the correct proportion at the correct time; 10% thinks they overreact. It's this 10% of people who are dangerous as is and need to be actually enforced with sanctions. 0.1% wouldn't matter; 10% does.