The closer your transportation form factor is to that of vehicles that we expect to be registered, insured, and not operated in a completely stupid manner the more rules you have to follow.
Scooters are held to a lower standard than electric scooters which are held to a lower standard than bikes which are held to a lower standard than (fully) electric bikes which are held to a lower standard than bikes with a Chinese 2-stroke kit which are held to a lower standard than 50cc commercial mopeds which are held to a lower standard than larger commercial moped which are held to a lower standard than motorcycles and cars.
The boundaries between classes are fuzzy and there's a lot of variability in expectations and enforcement but generally speaking the more rules you have to follow the less convenient.
You can't park a motorcycle in a bike rack (well you can but you'll have to make an involuntary contribution to local government if you do so) but nobody will care if you park a moped in a bike rack. You can't blow red lights and stops in a moped but most people won't care if you do it on a bike. It's generally not considered polite to ride a bike on the sidewalks but you can get away with an electric scooter most of the time.
The trade off of being able to get away with ignoring more rules is that the smaller form factors can't travel as far or as fast.
Scooters are held to a lower standard than electric scooters which are held to a lower standard than bikes which are held to a lower standard than (fully) electric bikes which are held to a lower standard than bikes with a Chinese 2-stroke kit which are held to a lower standard than 50cc commercial mopeds which are held to a lower standard than larger commercial moped which are held to a lower standard than motorcycles and cars.
The boundaries between classes are fuzzy and there's a lot of variability in expectations and enforcement but generally speaking the more rules you have to follow the less convenient.
You can't park a motorcycle in a bike rack (well you can but you'll have to make an involuntary contribution to local government if you do so) but nobody will care if you park a moped in a bike rack. You can't blow red lights and stops in a moped but most people won't care if you do it on a bike. It's generally not considered polite to ride a bike on the sidewalks but you can get away with an electric scooter most of the time.
The trade off of being able to get away with ignoring more rules is that the smaller form factors can't travel as far or as fast.