I've noticed that, increasingly, younger bus passengers remain in their seats until the bus comes to a stop, even when sitting at the back or upstairs. Meanwhile, more elderly passengers struggle down the aisle to reach the entrance so as to be ready to alight as soon as the bus comes to a stop, even when laden down with shopping or other baggage.
In days gone by we were all expected to do this so as not to delay the bus a moment longer than necessary, and if we stumbled or the bus jolted us we just thought we must be more careful next time.
Of course, it could be that younger people actually read - and obey - the various notices now found on buses telling them to stay in their seats. Here's one I saw on a Stagecoach bus recently - it's quite clear that passengers should stay seated until the bus stops, presumably because to do otherwise is dangerous. What it doesn't explain is what the 24 STANDING passengers are supposed to do!
Of course, if everyone obeyed these notices, buses would spend so long at stops that they'd never get anywhere on time!