And frankly yes. They measure carryon luggage. They should have people measurements. That way it's fair for everyone.
You must not have been on the boards when it was suggested that the airlines have seats by the check in to see if people fit. Folks hit the ceiling!!!!!
I agree it would be more fair but the outcry was that would be much more humiliating and degrading to have people do this. So it is back to airline personnel "discretion"
I feel for the airlines because it is a very hard spot to be in and the folks who are large (and know it) don't make it any easier on them. If you need 2 seats just buy them don't make the airlines call you out on it and then you wouldn't be "humiliated"