[Dylan16807]

A surcharge would be appropriate if it was proportional to the space used.

But you're completely wrong on the "discrimination against the short" front. Imagine if everyone that can easily walk demanded a wheelchair and cried discrimination if they didn't get one.

[avani]

This actually happens. Ask your flight attendant friends about “miracle cures” walking off their flights after using wheelchairs to board.

[Dylan16807]

They don't openly admit to not needing one at all, while still demanding one, do they? And if they did, they'd be obviously wrong to cry discrimination, right?