Your wish can come true. As our understanding of low-dose radiation improves, we can see that the prudent thing to do in most reactor accidents is to evacuate the area for a while (mostly to let the iodine decay) but then let people come back based on their risk tolerance. For instance, if a model tells you you may lose 10 days of life from living in a low-dose radiation field but you drive a motorcycle or eat red meat, you may be willing to move home.

Take a look at what it's like in the Chernobyl exclusion zone today: https://thoughtscapism.com/2019/05/08/what-about-radioactive...