Interested to know
My mum told me when I asked, aged 4 (mid 90s if you're interested) and I think she did the right thing although a lot of other parents at the time thought she shouldn't have
I know a lot of parents nowadays are advised to make sure their children give the correct names for genitals, that's something we have done
DD asked her dad today where babies come from (she is 2 almost 3) and he didn't really answer