Let's discuss scooters

Scooter engine is either attached to the rear axle or under the seat with a continuously variable transmission transferring power to the rear wheel.
Most jurisdictions have no legal definition for "scooter". In general, 50 cc and under scooters are classified in most states and countries as a moped and are subject to reduced safety restrictions and licensing fees.
Scooters above 50 cc are generally legally considered motorcycles, though some states have an in-between definition for motorized bike for scooters and motorcycles between 50 and 150 cc.
By the way, electric motor
scooter is very popular
In many parts of the world, such as Europe and Asia, motor scooters are a popular form of urban transportation due to their size, fuel-efficiency, weight, and typically larger storage room than a motorcycle.