A friend on another forum rides a Harley, and has for years, but he wanted to be able to ride with his wife, who had never mastered a stickshift - and he wisely decided a big hog wasn't the vehicle to learn on. A small Chinese scooter became available at a local garage sale, so he bought it for his wife, but discovered for just tooling around the neighborhood it was kinda fun.
OK, so he bought another one for his wife (they were dirt cheap, only a few hundred dollars). They rode just around the subdivision together for a few weeks before the engine on his scoot locked up. When he tore it down he discovered there were no replaceable parts in it - it was a Dixie Cup . . . it was designed to be used and thrown away. A replacement engine out of China was only a couple hundred bucks, but he found another scooter locally for about the same price, so he bought it for parts. A year later all three were junk. While they were fun while they lasted, he can't imagine how in the world they would have survived on the roads in China.
Then he had a revelation: they don't. They're all sold HERE.