Im not a nuclear bro, but a vast majority of the planet's Uranium is mined in Australia and Canada and both countries have pretty massive reserves. They have strict regulations and safety surrounding uranium operations. Naturally occurring uranium doesnt even pose much safety risk on its own, its the Radon that is generated by decay that causes problems for humans. Im not too familiar with how uranium mining is done but I imagine Radon risks can be mitigated pretty effectively with ventilation.