for me the most sad part is that, at least in Germany, in my opinion, part of the Seniors are not really caring about masks (mask under the nose == no mask). Sad to go to the supermarket and see them really not respecting the necessary distance or using the mask wrongly just because they don't want to use it.

Here’s something that might enlighten you: many old people don’t want to be alone for a year to avoid a chance of dying. Many old people would take that risk.

I think you didn't read my comment. I'm not talking about social isolation, but to use the mask properly - covering mouth and nose (at the same time) - and keep the recommended 1.5 m distance while in the supermarket