tim..... wrote:

Yes, these things are often in place when the scooter is delivered to
the customer, if it is delivered in one piece. It's a surprisingly
common item. Disabled people do travel the world you know.

but they are still a very small percentage of the whole

Only once in about 300 flights have I ever shared the plane with a
person who required assistance in getting to/from their seat (which I
suspect is a reasonable proxy for "travelling with their own wheelchair")

The disabled as a proportion of all air travellers is irrelevant. We
were actually considering the proportion of disabled people who travel
by air. You're getting a bit mixed up.

Bill