Are scooters for disabled travelers only?

Is it wrong for people who otherwise are able bodied to rent an electric wheelchair just to cut down on walking? That seems to be the question raised by this Associated Press story about just that trend developing in Vegas. The mobility rental company people quoted in the story I think have the ultimate answer. You can't discriminate against anyone. If someone wants to rent such a device to cut down on their walking, they should be able to. Seems lazy to me, but not unethical. I just hope there's enough of the scooters available to those who really require them and would have limited or no mobility without them. What do you think? (Photo of Las Vegas strip by Markus A. Jegerlehner via bigfoto.com)