The worst part is my city is pretty clean for the US lol. But yeah snow is just unavoidable if the climate is right for it, everything's getting a bit wet at least. (unless you are a bougie MFer with indoor parking and snow removal service and basically go from house to car to office without stepping foot outside, which some people do.)

And besides a few times a year to clear grime and rotten leaves and dirt and keep the storm drains flowing, the streets don't really get actively cleaned here except by random passers by, so those accumulate some level of things like broken glass, bits of trash, etc. Dog poop is not a common problem for me, but for people who have dogs and aren't perfect at cleaning up their yards after them its much more common.

I don't know what level of street cleaning other countries have, or whether they just have a more conscientious populace, but yeah parts of the US are filthy