Earlier quoted context omitted.
For glass bottles, yes. That's been done for a long time, and they're 8 cents a bottle. What's perhaps poorly remembered is that when plastic started to come into use in the 90s, the government decided that reusable plastic bottles should have a pfand of 15 cents, and single use plastic bottles should have a pfand of 25 cents. This means that bottles that specifically cannot be reused must be held onto and carried ba…
Maybe you don't understand the system but as you have described it is working as intended. Recycling is a meme. The point of a deposit system is that you return your bottles so that they can be disposed of properly. Maybe it is too difficult for you to understand but lots of people would litter without the deposit. There is no cultist conspiracy theory behind the deposit program.
If the issue is litter, why are glass bottles 8 cents, reusable plastic bottles 15 cents, and single use plastic 25 cents? There is no difference from an environmental standpoint whether you take your single use bottle back to the store or throw it in your recycling bin.
When the 25 cent pfand for single use was instituted, it was very clear that this was because the government wanted consumers to have to undergo the same hassle of returning plastic bottles as they did for glass bottles, otherwise, they would prefer to buy things in plastic bottles where they didn't have to haul the bottles back to the store.
The hassle is your penance for buying the single use product. Alternatively, you can throw them in the recycling bin and pay the 25 cents, but then you run into the other German religion of thriftiness. Throwing away 25 cents creates guilt, so even relatively well off Germans haul their plastic bottles back to the store.