I spent years of my youth in Germany.  I went back last year for the first time since my 20s.

There were signs on the U-bahn (the tube) in Berlin to please not sh*t on the platforms. The hotel had signs asking guests to please not take a dump in the shower.

What changed?

It’s fascinating how societal norms evolve over time. It seems that even in public spaces, there are expectations for behavior that reflect changes in culture and cleanliness standards. Your observations highlight the importance of maintaining respect for shared environments.