[Tade0]

I've spent a few months in Switzerland in 2020 and all I've seen were PET and non-PET bins for plastics.

But the rest of the world has that already in the form of public bins for plastic bottle caps, as these are made from PET.

In any case fines or no fines I doubt this is enough if a single piece of trash can ruin a whole batch.

I can assure you that I for one have thrown trash in the wrong bin at least twice - or maybe more because I still don't know the details of recycling in that country.