I like this idea.
I'm Australian and the idea of that blows me away. Like a third-world country. I've seen all the videos of shootings and disgraceful behaviour but I thought those were probably all rare incidents in bad neighbourhoods.
Here in Australia, I've had nothing but professional interactions with our police. I wouldn't hesitate to call them if there was a need or take a lost object to them.
Our laws are certainly heading more and more in a scary direction however.
Because the cost of being arrested, shot, etc. is quite high, it’s arguably logical to avoid most if not all interactions with them even if the odds of something going wrong seem relatively low, particularly when you have little to nothing to gain from engaging.
Even if you calculate that you’re not at significant personal risk from engaging, it might make sense to do so for other reasons, e.g. in solidarity with others who are targeted unfairly, and/or (plausibility of this aside) to simply attempt to get along without them.