In principle, I agree with you.
But, airlines seats have gotten so narrow that airlines may see this as an excuse to make them even narrower---and then charge anyone who is packing a few extra pounds for a second seat.
As a tall person, I find it almost impossible to fly already. And I won't do it for any trips less than a six hour drive. When you add in the Mineta Moron patrols who are in charge of airport security, I believe that lots of people are coming to the same conclusion.
You must be part of the problem, or you wouldn't be changing the subject.
How did I guess?
And, for some strange reason, my pants keep shrinking, too!