There are trash bins but now the person doing it to save 7 € is now committing an administrative offence so now you have a few legal instances of a problem instead of many instances of an ecological problem.
This is not to say that consumers paying for their trash solves all problems.
It does, however, provide an incentive to avoid "bad" trash in the first place. "Taxing" manufacturers doesn't (because those taxes apply equally to every manufacturer)
EDIT: To be clear, taxing the manufacturer works via contributions of ecological people in facor of the unecological ones. It's the opposite of what you'd want.
I think most places in the US do pay for trash disposal. I pay ~$17 per month for trash and recycling (recycling sadly isn't free, but I opt to pay extra for it). That is probably less than you are paying, but it is a profitable business for the company that does it.
This is not to say that consumers paying for their trash solves all problems.
It does, however, provide an incentive to avoid "bad" trash in the first place. "Taxing" manufacturers doesn't (because those taxes apply equally to every manufacturer)
EDIT: To be clear, taxing the manufacturer works via contributions of ecological people in facor of the unecological ones. It's the opposite of what you'd want.