Parents of adult children, do you have any expectations of their behavior towards you?

Specifically, I mean in relationship to you. Do you expect to see them regularly? Get phone calls? Gifts on holidays? Or do you feel it is entirely up to them? How much contact would you like to have?

For the purposes of this question, I want answers only from Jellies who have adult or young adult children. Putting this in General and answers by others will be flagged.