This probably reminds you of the electric bike, so you might be confused regarding why are electric bikes legal but not scooters? Perfectly, electric scooters can achieve higher speeds of around 30km/hour, however the battery needs for being recharged right after a particular distance (between 10 and forty miles). https://titusyrzcc.qodsblog.com/30010301/a-simple-key-for-top-electric-scooters-for-adults-unveiled