I wish Europe had any drinking fountains. Even extremely-high-traffic public areas such as airports and train stations have but a few or (usually) none.
It amazes me that 1960s Moscow had drinking fountains with shared glasses: https://www.youtube.com/watch?v=F68bbzOOOdY&t=1850s What were they thinking?
Shared glasses were quite safe because every machine had special button to clean the glass with pressurized technical water (several calibrated jets) with some chlorine in it. People cleaned the glass with it before pouring soda water.
USSR has been eco/green paradise: no plastic bags or wraps. Meat was wrapped in paper. Milk, butter and sour cream were poured into whatever container buyer had provided. Glass bottles, paper and alike have been routinely recycled mostly by kids as there was small payment for bringing that stuff.
It’s only after the fall of the Soviet Union that shit with plastic poured into. As well with the fall of recycling, morals, etc. (say what you will about hollywood films of the 90s — nothing upstanding about it).