Roland Perry wrote

In Geneva, all stops appear to be compulsory (and the bus does stop)
even if there's no-one stood at it and the bus clearly has no
passengers
either standing or making their way to the door. This gets a bit
tedious
when the route is lightly loaded!

One reason to ring the bell on country bus routes is that standing up
or moving before the bus actually stops can be unsafe, especially if
one is not very secure on ones feet.

So expecting the driver to notice only works when the passenger feels
it safe to move when the bus isn't stationary.

--
Mike D