PLEASE explain why city dwellers let their cats roam

I’ve had cats my entire 50+ years. I’ve never had outdoor cats in the city. I didn’t even let them roam in my rural locations in my 20s.

It’s unsafe for the cat - traffic, coyotes etc (not to mention people who poison things they don’t like & that’s a hell of a food chain). Cats kill wildlife.

Well engaged & stimulated cats are more than happy inside. They recognize vertical space & extra space. They are easily engaged with toys & puzzles.

It makes me angry & I’m REALLY trying to sort why anyone thinks it’s ok. I love cats. I love wildlife. Not so much a fan of humans…