My Mom started the conversation when I was about 10 and then told me to read a book and to let her know if I had any questions! She handed me a book almost like me’ at 10’ trying to read ‘stereo instructions’.
But I read the book as she had asked and went back to her with a few explicit questions. She answered the questions, showed me some pictures, and that was that.
To tell you the truth, I learned more about this in Catholic Girls school and my friends than I did from my parents. How were you told?