ID children names without birthdate: User feedback - confusing language (children[0].name.first)

[CaroRob]

Page title	Tell us about your 2nd child
What was confusing	I have to put in the birthdate of the second child, but I didn't have to do that for the first child.
Other information
Question ID	children names without birthdate
Variable being sought	children[0].name.first
Package version	playground
Filename	docassemble.playground6Obligors:ChildSupportObligors_umbrella.yml