Found the physicist.

Finland, but it’s the same in all of the EU. Scooters are legally the same as bikes.

Well you’d be wrong. The law says they belong on bike paths here, and a lot of the time sidewalks are combined paths where bikes are supposed to go.

Excuse the slop but I wanted to see an illustration of what this might look like, and I can see how someone like Trump would find the second picture an improvement.

Where I’m from there’s still a plenty of combined pedestrian/bike paths that have an annoyingly high curb after every crosswalk.

I don’t understand how jumping curbs is supposed to be a problem, that’s just something you have to do to get around sometimes. It also seems like something that hitting potholes would easily get confused for.