I truly believe that you cannot "teach" children emotional health, other than by example. Parents are the primary role models and I know I learned much more from what my parents DID than what they SAID.
My children were raised in a chaotic, alcoholic/codependent family until the ages of 9 and 13. I have no doubt that those early childhood experiences affected them. And not in a good way. But, since then, I have literally turned my life around. I set a healthy example for them in the way I lead my life. The past cannot be undone, but the future is wide open.
L