Comment by Telaneo

> That part was specifically about train stations and classrooms.

Depending on where I'm standing inside a train station, I'll be much more likely to see a digital sign saying when the next one arrived in minutes rather than a clock (a fair amount do have clocks, but they all have digital signs that give you what you actually want more quickly anyway, while being a whole lot more visible). If I'm at a tram or a metro stop, I'll definitely have the sign, but probably no clock.

I've had a computer and thus a digital clock in front of me in class since high school.