So are you saying we shouldn’t give crutches to people that can in fact walk but shouldn’t because they need to heal their leg properly?

A crutch is an aid, it is given to people that need aid to be able to walk properly. This might be because of some inate deficiency, or because of some injury, you wouldn’t say a person who twisted her ankle and will make a full recovery in 1 month is deficient, they are currently in a state of deficiency, but it’s not inate to them. That’s the jump in logic you’re making without realising, just because someone needs aid doesn’t mean they’re inherently inferior, but they might be in a situation that makes them less able than what they should be.