I know you have heard me say this before, but since it came up again, I'll say it again (I guess mainly for others)..... motor vehicles do not belong on pedestrian pathways. Especially not ultra-crowded pathways. Not golf carts. Not scooters. Not those loud gas powered skateboard things. Not cars. Not mopeds. None of it does. Shoot, I don't even think skateboards, rollerskates, roller blades or horses should be allowed. For the same reason; people can stop quicker than most vehicles and vehicles are heavier (and harder) than people. What is deemed safe should consider this. People also trip, stumble, and sidestep constantly just adding to the gauntlet of terror that are vehicle infested pedestrian pathways.
The only thing I know that stops as fast as people are standard powered wheelchairs. ...not to be confused with the scooter things people are passing off as somehow the same thing. Not the same thing.
All that being said, an ultra cautious scooter driver can actually navigate a crowd. It will be slow. It will be arduous. It will be frustrating. But it can be done. Of course some scooter drivers give up on safe (or are incapable of it), drive fast, somebody trips in front of them, they ram them, then somehow it is the person that trips fault?
To put it more simply, any scooter speed that results in hitting a pedestrian is too fast. I cannot think of any scenario where a scooter -vs- pedestrian impact is the pedestrians fault as any speed driven by a scooter that results in impact is too fast.
It is a big ole catch 22. If your scooter hits somebody for any reason, you were going too fast. Defensive driving 101 - Assume everyone will trip in front of you and drive accordingly.
The times I was hit and not just rolled over, the driver was going almost slow enough to avoid me. It smarted a little, but I was able to walk it off none the worse for wear. Slower would have resulted in no impact.