The tubeless and "tubeless ready" thing is causing at least some of the problems mounting and dismounting tires. Some rims now don't have a low channel in the center so you have to stretch the tire more to get it on.
My friend sold me some GP5000 tires because he hated fighting them onto his Dura Ace wheels. They go onto my old school Open Pro rims easily without tools.

Some of the tubeless ready tires fit tightly on the bead, making them hard to get on and off. My mountain bike tires are tight on the bead even after deflating. They're almost like a car tire. I have to break the bead with a large screwdriver. I did put a tube in one on the road and I still don't know how I got it off the rim.

2 weeks ago a friend and his wife both flatted riding through some goat head thorns. I fixed hers while he fixed his. I got to try the bead jack and it worked great.