I think some of it is fear of the unknown. Recovery had some painful moments but the human body is such a remarkable machine, the physical healing takes place all by itself. The mental healing takes some work by you, family, other ostomates. My job as a ship captain takes me all over the world. Flying isn't a problem anymore.
Some people have problems accepting their new way of going.
But I can tell you I don't miss all the trips to the bathroom, feeling like heck and having no life at all. Taking care of the Ostomy isn't a big deal. I empty the pouch about three times a day. Most nights I don't have to get up at all. I do drink lots of water.