Pieter says to Griet, 'You're getting caught where you should not be Griet. Theirs is not your world'. Is he right?

Pieter the Son says this to Griet because he loves her and feels as if she is getting too involved and too used to a way of life that isn't really hers, and that she cannot attain or hold onto. He is right, and he also is her future...... her life is with him.