It’s because the education system is utterly outdated across the world. No digital literacy, media literacy, or health literacy in the curriculum but lots of things you’ll never need and forget to never be useful again within a few months. Studies should investigate things relating to this subject.
It’s also because of the quality of search engine results but both are directly linked, people need to learn how to use search engines etc.
There are tons of options for that, mainly energy storage such as batteries, hydro, and green hydrogen. Nuclear is not needed and too expensive among other things.