My first thought was what @Elegaic describes, my issue is that I see parents posting in forums, not even gender identity ones, just normal parenting ones, and they absolutely believe their children are the opposite sex.
I mean, look at the CEO of mermaids.
So unless this is backed up with comprehensive guidance from Tavistock with clarity around diagnostic points and watchful waiting for the Gen Public (can't see how that's doable in reality) I can't see how this will work.
(Unfortunately when you've been involved in a discussion in the v well respected breastfeeding support group that you've been a member of for 8 years where several women you thought to be knowledgeable about biology, child development etc, where they were adamant about gender ideology being fact, and aggressively so, you develop a very jaded view)