For a short while mobility scooter were subsidized by MedicareNow mobility scooters are very hard to be subsidized by medicare and a lot of stubborn people who want to travel around various places and don't want to walk use a mobility scooter.
Anyone who drives a mobility scooter has to sit upright and have at least one hand strong enough to work the levers and switches required to drive a scooter. People who have had their leg amputated above the knee might need a scooter even though some younger amputees have so much strength and energy as to enter into the wheelchair olympics.
Today at the scooter store we were selling a scooter with a ramp. A ramp is one way for a person to take their scooter to places other than the home

and maybe wheel around to see the sights. However a person who uses a wheelchair or a mobility scooter may not be strong enough to take their scooter off of their vehicle.

If a person can walk only slightly then maybe he could use the electric power on the scooter to go backwards up a ramp.
But basically getting a scooter off a vehicle might prove to be too much effort. If a person can only slightly walk, then why don't they walk more to be stronger?
The mobility scooter business might be a dead end job. There is more scooter businesses going out of business because medicare is not providing more assistance in buying the scooters. The town of Burbank and Glendale has quite a number of people using mobility scooters. They are small enough to get on the bus and all the buses here are able to put a ramp out for the mobility scooters to take a ride. (Maximum two mobility scooters per bus and I have seen mobility scooters refused because there are already two people using it already on the bus).