Conservatives don't actually care about kids at all. Which is why they're fine with forced child marriage, fine with forced "corrective" surgery on intersex kids that they always put an exception in for their anti-trans bills, and fine with girls getting breast enlargement surgeries.
Because it's not about protecting kids or "consent", it's about having a new boogeyman to fight against, now that it's at least slightly more morally objectionable to go after gay people, though that's not stopping them from trying there either.