I wouldn't take quite as strong a position as this, but as public pianos go, airports are a weird one to me, because if you're in an airport you have no choice

I wouldn't take quite as strong a position as this, but as public pianos go, airports are a weird one to me, because if you're in an airport you have no choice but to be there. Subway piano? I'm only in the station for a while, and I can choose to stay longer if I like. Outdoor piano? I can keep walking. Airport piano that happens to be near my gate? Ugh, I have to stay near this spot even if I don't want to listen. It's the "captive audience" part that I am not a fan of. Doubly so if the person playing overestimates their ability or the novelty of their repertoire.