Attendant: No, those are for the flight attendants.
Me: But I thought you said we can switch seats?
Attendant: This is a full flight. Yeah, I know. It’s kind of pointless huh? *walks away*
Packed flight.
American Airlines attendant: If you’d like to switch seats due to COVID, please let us know and we’d be happy to assist you.
(The only empty seats are four rows in the back)
Me: *raises hand* May I move to the back?
Also let me be clear, shoes on in the house is not actually an American norm. It is a particular subsection of white Americans that do that, but people take their shoes off in the Midwest, the South, the North East....no one with hardwood floors or carpets wants your shoes on