I can give you one example ( Of many ) that has affected me , As follows
It doesn't affect me directly. BUT we have a lot of very wide grass verges around here, And I mean wide, some are rather nice tree lined others are quite heavily planted with bushes and shrubs, although they are still fronted with "several feet" of grassed area's
The local council do a good job through the year "Managing" these areas. They aren't really play areas as such, as they are normally along side busy dual carriageways, or other fast roads.
Every year for as long as I can remember ( about now) the travelling community pull up with their caravans, and 4x4's.
Each year, after they move on, the cost of clearing up after them is published in the local paper along with images of the garbage they left behind, and that's anything from tin cans to sheep fleeces / remains.
Last year the council said enough is enough and built ( and are still building, its a big ask) mud banks about 3 feet high, as barriers.
They look(ed) scruffy at the time but now they have started to grass over, it all fits in with the local landscape.
I guess the cost the cost of this is outweighed by the costs of the "clean up crews"