It depends on how one has been educated. A minimal fee (for example, 10c per bottle) is very advantageous, because people with higher salaries will just throw

It depends on how one has been educated. A minimal fee (for example, 10c per bottle) is very advantageous, because people with higher salaries will just throw them not minding the minimal economic waste. People in the middle will return them while doing the grocery. Finally, poor people will hunt for them. All of this, saves lots of garbage around.