I assume you're paralysed then since you volunteered your opinion on this matter?
The only opinion I gave you was that of the fact that I suspected you had no practical experience with these products.
Which is true, isn't it?
Off to youtube to find a rather vague 47 seconds of someone using one, possibly the first time by the mile wide grin on his face and the handler behind him

Sorry to disturb your quest to weigh in on subjects you know nothing of - I hope that you are not afflicted with something like that, one day and consequently do not have to have endure some fucking random kunt on the internet who knows absolutely nothing about what he is talking about* dictating what you should or should not be doing.
(* credit where credit is due, you do know that wheelchair sport is GREAT

)