Online Liability Waiver for Minors Question (United States)

Hello,

We are attempting to convert our youth media releases to a digital form for greater ease of getting them to parents and back to us completed.  I thought to query the community as to the best way to do this that is still legally binding.  I’m wondering if we need to make sure I get a digital signature through use of an online site like docverify, or if simply using a Google or SurveyMonkey, or Wufoo form with a field to type their name and then a box to check would suffice.  Here’s an example: https://www.wufoo.com.mx/2016/06/28/doing-something-dangerous-get-that-liability-waiver-ready/

We’ve been Googling and haven’t been able to find a good answer for this.  Especially as it relates to a general media release for minors.  Any insights you have or directions you could point me would be greatly appreciated.

Thanks!

Andrew