Well, it means your daughter won’t be able check if the cramps she has in her tummy might be her first period and your kids won’t be able to search for a clear definition of what it means to be gay or transsexual, so they might have to rely on what they hear in the playground.

No, they'll rely on my parenting. Linking them to the Wikipedia article on sex doesn't count as as parent-to-child talk.

It's a big enough deal that I want to do this. I'm not going to just leave it up to sex ed, the playground, or the internet. I do what I can.