Airlines and passengers optimising for different goals. Not surprising this winds up in a tussle.

Given that planes still have to have places for ashtrays, and that I predict battery-powered airbusses won't be a thing, I am okay with failing airlines. The Ushuaia/Cape Town railway can't come soon enough.

Is this a problem in the budget airlines space, with Ryanair, Spirit, and Frontier, where the staff actually enforce luggage requirements?