At first I thought this must be a joke but I guess it's seriously being considered. It's a sit/stand type of seat for low cost carriers. Seats would sell for £1-5 on short hall flights of 1-2 hours. The seat front is angled down so you use leg pressure to stay upright against your seat back.
https://euroweeklynews.com/2025/05/21/low-cost-airlines-to-launch-standing-only-seats-in-2026/
I also wonder what the luggage and carryon cost and restrictions would be. I'm intrigued by the cost for a one hour flight but.....
How much are you willing to sacrifice for a cheap flight?