My old and creaky knees are why I won't buy a scooter! I don't want the scooter to get my body someplace my knees can't get me back from!
That's a key part of the instruction in a cave scootering course. In your planning, assume that the scooter will fail at the worst possible time, and make sure you have the ability to get home without it.
 
				 
  
						 
  
 
		 
 
		 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		