Nuclear waste is still an unsolved problem that absolutely no one wants to touch with a ten foot pole. Also nuclear power is a pretty expensive method of power generation and can't be insured, leaving all risk of disaster on the shoulders of society. To be clear: society will be pretty fucked when a nuclear disaster happens anyway.

It's a lot better than coal, though.

Solar and wind will always need batteries for times of low output, until we get more resilient and larger capacity batteries we will need a backbone to support the electricity grid to avoid having to overbuild battery capacity.

As of right now natural gas is that backbone but that could change and very well be nuclear energy until we figure out something like mass produced solid state batteries.