They already do in places like Colorado. Not air but bottled oxygen for tourists not used to the lack thereof.
To be fair it’s oxygen and not air and designed for people who come from sea level, but yeah.
Also I can’t say I wouldn’t take them up on that. When I was a teenager I went to summit county on a snowboard trip and coming from sea level…. Despite being an athlete… I was winded just going up a flight of stairs. But your body adjusts after a day or two as long as you hydrate and don’t drink alcohol.
That does make some sense, but the whole idea of privatising the distribution of life-sustaining gasses while it isn’t strictly needed gives me the creeps.
As per your example, there’s still air at high altitude, and the body does just fine in adjusting to the variation; would not have a problem with medical uses for people who have cardiopulmonary issues, to be clear.
It feels like putting the pot on the burner and starting it up at Low, y’know?