DS-3032 does a minor need to sign it

[nystu]

Hello everybody, I haven't been able to find my answer so decided to post it (sorry if posted already). Does a minor need to sign his/her DS-3032 and any other documents related to CP? I am just wondering if one of the parents can do it, as a background, I filed for my step-children and trying to figure these things out before we get NOA 2's.

Thanks for your help