You’d be surprised how inefficient much of evolution is. Look at a giraffe’s laryngeal nerve and you’ll see what I mean but because it hasn’t been a reason to die or deter mating it carries on.

Even in humans or knees are awful but because we evolved from monkeys our knees had to bend backwards to climb. So to get around this we have long feet and an ankle that serves as the fulcrum instead of knees like basically every other know bipedal species.

I could ramble on about this for a while but I’ll spare you my nerdy excitement.