I can't see that anyone skirted the issue of whether these were designed for para's or not. Your rant notwithstanding, these appear to be totally useless devices designed to move otherwise capable people at less than a walking pace for limited distances. Even my grandmother, bless her, walked slowly but surely and doubtless would have had no desire to waste time, effort or money on using one of these.

I thank Bes for the "electric lard chariot". I think it's funny (and yes, I know I'm overweight and out of shape) and in this case most apropos.