Thorium reactors can use "used" nuclear reactor fuel in addition to Thorium, and they produce comparatively little waste which lasts vastly less long.
On top of that, they do not need active surveillance because, if the reaction gets too hot, the salt plug melts and all the reactive material just drops into retaining pans. The reaction stops automatically.
All you need to do after that is wait for the existing matter to cool down, put in a new plug, scoop it all up and start over (of course, I am aware that this is a largely oversimplified version of reality, but I'm not a nuclear scientist, nor even an engineer).
The thing is, nobody wants to do Thorium reactors because everyone wants to get the Plutonium that EPR reactors make, to make more bombs.
We have more than enough bombs.
Let's get back to making civilization function.