You don’t meet the expectations of your child if you can’t guide him/her through some of life’s more difficult and permanent decisions.
You don’t meet the expectations of a sibling if you can’t laugh with each other at the collective mess that was your brought up.
You’re not meeting the expectations of your family if you can’t challenge your husband’s poor decisions and support his good ones.
You’re not meeting the expectations of your home if you can’t nurture your wife’s ambition.
It’s true that we subject ourselves to disappointment. We set the expectations that lead to disappointment. You can learn to lower your expectations from certain relationships. There are however relationships that are defined by a set of expectations. Redefining your expectations redefines your relationships and sometimes that’s too high a price for saving yourself from disappointment.