I take pictures of my children casually in public, and I always try to not include strangers. Technically it’s illegal for me to take the pictures if a stranger is on the photo, but I’m trying to avoid it because I don’t want strangers in my picture. I never think about the law while I’m doing it. Similarly if you’re taking a photo of some cultural/historical place you’re not going to want to focus on strangers in it, unless you’re the kind of weirdo the laws are there to target.
The only non-creep people these laws really impact are the photographers who actually do want to take pictures of unaware strangers for artsy reasons. I’m not entirely sure how they handle it, my guess would be that they break the law and then ask for permission afterwards and delete the photos if denied, but it’s just a guess.
Anyway, I don’t think it really enters the mind of any regular person taking pictures. But it’s nice to know that if someone is breaking these laws then you can call the cops on them instead of having to make them stop taking unwanted photographs. Which is really what happened before these laws, you’d have some creep taking pictures of high school girls at their last-exam-party (day where they all go drinking in various parks - very Scandinavian), and the creeps would get beaten up by a bunch of high schoolers. Now the cops can simply arrest people taking photos, and I know some of you may think this means they arrest a lot of high schoolers, but our police officers aren’t… well… assholes.