I am confused with your story. You mention your child says "my planet" and that the "bad people will go away".
Does that mean the "good" will remain here?
What is the incoming planet going to do, with earth changes described by your young ones as destroying or rearranging the planet, yet the good will remain here.
Are they talking about spiritual evacuation of the "bad" and the "good" left to remain here, in the flesh?
How do you think they get their concepts of "good" and bad"?
Would you be content to live in limited flesh for ever?
Especially if it all we have ever known, or can remember?
What are the ancient ways you speak of? As in the ways of the natives living in harmony with nature or something different?

Sorry for the many questions ....
Any light you can shine on my questions would be appreciated.