i never understood why Disney doesn't allow you to buy a length of stay scooter rental directly from them. On one of our recent trips we had someone in our party who required a scooter and we used a third party approved by Disney. It was simple enough to use, they delivered it to the resort, we picked it up, and just left it at bell services when we were done. Simple enough.
But the person in our party didn't it need it 100% of the time, they were up for some walking/standing but not full days worth. It would have been much better if we could have paid a fee, obviously it would be in range of the daily rate from disney vs. off site, but allow the scooter to be reserved so we knew one would be available. And instead of having to through and fill out the rental agreement and all of that everyday (wasting valuable park time), do it once before arrival, sign the paperwork online, pay, select parks and days, on that day walk up, wave my magic band, get scooter. Seems like a lot easier process and a way for disney to make more money.