[Sethomas]

Well, my point was that it's hard to climb stairs without bending the knees. It's possible, but most people would avoid it because of how society would judge you.

You're right in that it makes putting on shoes more difficult, but since the presence of tread on them is irrelevant and the wearing of shoes has a positive general effect on well-being, it seems unlikely that this is the message your body is trying to send.