People will do a lot of things to save a few bucks!
The trash cans haven't been replaced here yet, but there is a growing trend of having to pay per load of trash you offer, instead of your dumpsters being emptied for free.

I'm not sure this is a good thing, because people will just find other (less friendly) ways to dump their trash. Add it to their neighbour's bin, dump it in nature or, in your example, next to trash bins.

I think local authorities should encourage people to offer their trash to be taken in by them, not discourage it. We're already splitting our trash more and more, meaning we can recycle a lot. the local authorities can sell the recycled trash, so why make us pay extra? It just means more littering, which isn't good for anyone.