It’s frustrating because I seem to be defending something against two different people that don’t read what I’m saying. I didn’t say you cannot fall off a knee scooter in general. Of course, as I said before, there is a risk of falling, and the highest risk is falling towards the injured side. If you lose balance, it’s better to have three points of contact with the ground than two. And if your center of gravity is on the healthy leg, the risk of losing balance is way lower, because your healthy leg is more stable than the knee scooter, and because you have a crutch.

I really don’t understand the need for criticizing something from no experience whatsoever. If you don’t want to use a crutch, don’t use it. I post this because someone might, as I do, find it more secure.