Most jobs don’t need these strict schedules, though. I get it in hospitals, factories, etc., but everyone else could easily switch to looser time slots.
For example, I’m technically on what’s called Gleitzeit (sliding time?), that means, there’s a core 6h window from 9 to 3, where I’m supposed to work, but where I put the other 2h is up to me. In terms of commuting, that model would help smoothing the traffic curve.