It’s hard to breathe with your feet. After all, they’re usually pressed to the ground. You can’t run, jump or dangle them all the time. That’s why you can sneeze and choke.
Same with your hands. They’re so eager to roam around and touch everything. But you’re doomed to wash them repeatedly, trying to keep them clean. That’s why you can splutter and suffocate.
Same with your arse. (We’ll trust you with the reasoning on this.)
So, it’s better to pull your nose out of others’ business and use that for breathing instead. Hasn’t it been Nature’s plan all along?