I used to fly regularly, because I had to go to meetings. After numerous times that my checked luggage got lost, and maybe turned up several days later, I got in the habit of only bringing a carry-on bag. Since I usually only was away for just a few days, I could manage that, although it wasn’t always ideal. But it was great not to lose the luggage, and not to have to wait sometimes up to an hour for my suitcase to turn up at the luggage carousel.
This is obviously the reason why passengers want to carry on their luggage.
Lost luggage is always a problem and to some degree I agree.
However, the carry on bins are not unlimited and should not be first come, first served. There is a certain amount of space allocated to my seat, and I damned well expect it to be available to me when I get to my seat.
If you have a late boarding ticket zone, you can be forced into putting your carry on on the jetway and have to wait to retrieve it from the jetway, because so many others decided that they just had to have an enormous bag to stuff in the bin, and take up their space and several others as well, and refuse to put that bag under the seat in front of them. God forbid they might have to give up their leg space rather than let everybody have their space in the bins.
I am with United on this one, and for the record I consider them to be a fly-by-night outfit. Fly them by force, not choice. Much prefer JetBlue.