But even in cities there’s reasons to clean them up. They clog drains, they lump together in the gutter creating blockages that cause large puddles when it rains, they stain the pavement, they decompose on the sidewalk and people track it everywhere in buildings, and more. Maybe you don’t see these as problems that need solving, but people aren’t tidying up leaves just for the fun of it, they have reasons. We’re not simply obsessed with cleaning up leaves.
However, I live in the midwest. We don't have as many trees here as the east or west coasts.
However I also have honeylocust trees which drop loads of these large bean-like seed pods and these stems after the leaves fall which bunch up and can only be best described as like "wads of shaved pubic hair." I also have sweetgum trees which drop these hard, spiky seed pods that I also need to rake up. The mower can turn those into projectiles.
Really the best solution, in my case at least, would be to alter the landscaping in that area to something that would be unaffected by the leaves, but I don't have the time for that now. So clear leaves I do.
There's a LOT of leaves in the northeast. They absolutely NEED to be collected. It would bury the roads here if they didn't.
Do you think we don't have trees and lawns in Europe?
I don't know why "they" don't do it in Europe, I have no idea where the commenter I replied to is from in Europe. I was just stating one reason why people do it here.
Q: "Why do people in America clean leaves off the lawn?" A: "Because it's possible it can damage the lawn if you don't in some circumstances."
Simple as that. No idea why people do or do not do it elsewhere.
1. Rural areas where each lot is >1 acre. You might get some weed whacking, but it is not as obnoxiously frequent as fastidious leaf blowers.
2. Move to the desert where there are no trees. Bonus = no mosquitoes.