> Many countries have deposits for single use bottles/cans [...]

Yeah, the deposits for cans are a bit stupid: people already widely recycle aluminum (and scrap metals in general) purely for commercial reasons. No need for extra regulation there like mandatory deposits.

It's much easier to recycle things when everyone participate and bring their trash to a common place.

I've lived in places with no deposits and there is much much much more littering compared to places having deposits on every types of metal/plastic beverage containers