Originally Posted by
tomato coupe
With tubed tires, a string of bad luck usually means you just replace a bunch of tubes. With tubeless tires, a string of bad luck can mean dealing with sealant messiness, tire-seating problems, ruined tires, etc. That's the most often cited reason I've heard from people who have abandoned road tubeless, i.e. the downside of tubeless is greater than the downside of tubes.
This was my experience with tubeless after a year of wanting to like it, on both road and MTB. It's unpleasant work in a shop, but problems are always worse when you have them in the middle of nowhere.