... throw universities and schools into the pool also and you might finally get something which 'just works'.

Difficult question: how do you make people in power agree on a solution? Not even universities managed so far to standardize their IT infra.

Germany is a country where one city orders would new trains which would eventually crash into the next city's platform due to different platform dimensions [0]...

[0] https://rp-online.de/nrw/staedte/duesseldorf/duesseldorfer-r...