Originally Posted by
halfroev2s
Some regional jet airlines have a "no carry on" policy in order to get more passengers on. They negotiate with the FAA that they won't allow rollaboards of any size in the cabin in order to lower the "average" passenger weight used to calculate the "cabin" weight. That is why your carryon is refused in the cabin, even though it will probably fit in the overhead bin. That is a very good reason to travel with a Tom Bihn Tristar.

Exactly!! Any number of rolling bags fit, but at least with United many FAs claim that if it has wheels it MUST be gate checked, no matter how small. Very frustrating.