Flying is easy if you follow the procedures like others said - it's the clueless who slow down the process.
I haven't checked a bag for about 30 years, if you can't carry it on board you don't need it or you can ship it ahead.
Those with carry-ons that are too big have to check them.
Harry - try flying out of Midway instead of O'Hare - so much easier!
...and like Rob said how would you get to all those cool destinations, like Hawaii, a boat trip takes too long!