My impression was that jet engines are more efficient than turboprops? And it takes a while to climb to 65000 feet. Especially if the engine isn't as powerful

My impression was that jet engines are more efficient than turboprops? And it takes a while to climb to 65000 feet. Especially if the engine isn't as powerful as jet engines usually are (yes, it's more complicated...). Another point is safety. Bigger airplanes usually have fewer accidents, not just because the pilots are more experienced, but also because of higher robustness against weather, time to correct mistakes, and fewer dangerous actions (landings) per passenger. Basically fewer chances to screw up with pilots that have a very long track record of not screwing up.