Earlier quoted context omitted.
Speaking as someone who cares about the environment, I think that environmentalism in Germany has parallels to religious practice. I don't think that it's a coincidence that Germany is extremely areligious, and that sorting trash is taken to such an extreme. Sorting trash is a ritual, it is slightly sacrificial in time (especially returning bottles to the store), and it can be seen as a penance for the sin of purchas…
At least returning bottles to the store actually works...
This means that bottles that specifically cannot be reused must be held onto and carried back to the store, so that they can be crushed and recycled. The machine you must feed your bottles into to get your 25 cents back crushes them itself. Someone who tosses those bottles into the recycling bin has done nothing better for the environment than someone who returns them to the store.
This seems absurd, but it's the whole point of the 25 cent pfand for single use bottles. People who buy those are supposed to pay the penance of taking them to the store and getting their money back for the sin of buying non reusable bottles.