I ordered a small ebike for my mother-in-law last month through Alibaba.
MIL is 78 y-o, 4' 8" tall, weighing less than 100 lb.; likely will not be pedaling much while riding; mainly just want to get her outside and be able to move about without walking.
Maybe occasional trips to the local grocery store (2 mi. away) on it with capacity to carry some groceries home.
Shaft drive, single speed, regen, low standover & seat height, short crankarms, I think MIL will get some use out of it.