When you are stuck in the hollow tree, the only new air will come from your children but they will run to the other side of the globe to get away from the stale air

The adults just want to isolate themselves from anything that is outside their control. Even their work is a drag. They say, I don't wanna work, I just want the money tree.

All they want is retirement to stay home and watch Netflix and order pizza. 

All of that education and brains inherited from your parents amounts to this? 

The children are blossoming and the parents are threatened. All the folktales are true.

Do the parents really think they could hide from humanity?

The exhaustion is caused by fending off the world. 

Energy is created by engaging in it physically and mentally with all of its agonies pitfalls and joys. 

(see the Grimm's Tale # 65 Thousandfurs for hollow tree reference)