Comment by Antoniocl
How this issue skews probably depends on where you live, but in the area I live, I have the opposite complaint: that bicyclists should re-learn that they are legally required (in my city) to ride on roads, rather than barrelling down sidewalks.
That said, this is coming from me as a pedestrian, so maybe someone who was primarily a driver would have a completely different take from both of us.
I don't personally care whether bikes (or scooters) ride on the road or the sidewalk, but my one ask is that:
If they ride on the sidewalk, they should behave like pedestrians. That is, do not blast into the crosswalk at 20mph (impossible for drivers to safely check for in most environments), do not randomly enter the road from the sidewalk, pass pedestrians at a respectful speed and distance, etc.
If they ride on the road, they should behave similarly to motorists. That is, actually obey stop signs (rolling stop, or even treating it like a yield is okay), and actually obey traffic lights.
I'll even tolerate transitioning from one to the other at appropriate traffic stops. Just please don't get upset if I almost run you over for abruptly taking right of way you never legally had.