I would rather be on crutches than in a scooter.  Even if I break limbs, I don't want to be associated with that filth.  Also, even with crutches, you have much more mobility than on wheels. Plus, there's nothing like the feeling of actually walking around on a beautiful day.  Bicycle, jog, etc.  It's moving around in the air that makes it so nice.  But that would just go over their fat-addled heads.