Is there an add on that would allow a user to select how many children they have (0-x), and based on that selection (or maybe as an add child button), be given additional fields for the childrens: age(or date of birth), sex, name).
The key is that im resisting creation of these fields redundantly, when there not any/many children.

So far I am not intending these to be separate sub accounts of the parent, just for access to certain areas of the site (or forums).

thank you