​To reduce airline costs, increase seating capacity by filling the aisle with seats.

People can just climb over the seats to get to their assigned seat, or the bathroom. Just like 5-year-olds climbing all over the furniture.

Carry-on luggage is recommended to be a backpack with waist straps so you can wear it while you scramble over the headrests.

Flight attendants can throw food or water to whomever needs it. Or it could be passed down by passengers alternatively.

Boarding times can be reduced by giving everyone a strong dosage of caffeine before embarking and disembarking. Also having flight attendants yell “Go faster!” at passengers like they’re drill sergeants would help.

I don’t see any problems with this… Just book the elderly and handicapped, near the front entrance. People need the extra exercise anyways.