My daughter started getting curious about different things one day She was 9 I just sat her down and explained where babies came from/ how they are formed, she was really grossed out but i was glad to get it over with 😂
Our kids aren't allowed on social media and we homeschool....so most things we can monitor. Ages are 11 down to 2 with a baby on the way. We've always had very open communication on sex/reproduction (age appropriate), menstruation, puberty, relationships...etc. We prefer the textbook/diagram version since it removes the weirdness and is just how things are. The kids don't seem to mind asking questions and talking about things.
From birth
My son is 1 and my daughter is still brewing so idk, but I will never lie or downplay any of the questions. I do want to have them knowing by like 8-9, especially my daughter because girls can get their periods around 8. Although most be older, the fact it can happen early, I need her to know early lol
My son is nearly 5, for a couple of years we’ve been answering questions and giving high level info about relationships, reproduction etc. He understands (or at least I think he does) that eggs live in a mummy’s tummy and grow into a baby, then either come out through the vagina (or by c-section since that’s how he was born). We’ve talked about different types of families as well.