So agree @Rumours1
The norm with children is they most likely know their abuser well.
No sleepovers here till secondary school, age 14.
Fortunately my children were never pushed and it wasn't the norm at all in our circle.
My children have kept friends from reception class, of 20+ years.
I never regretted my decision to be cautious.
You can be the very best parent and have everything destroyed by a predator known to your family.
My very close friend is a barrister and she said it is overwhelmingly family and close friends/ neighbours that are opportunistic predators.
Every single woman I know, has had a brush with a predator.
The lucky ones, like me, was "just" a handsy neighbour etc., .....he never got a second chance as I studiously avoided him.
Turns out I wasn't the only child he was creepy with.
He was never convicted of anything.
But in the countryside you had to be very very wary of bachelor farmers, or bachelor neighbours or uncles....notorious for being creeps among young girls.
We often didn't have the language, but we all knew.
Childhoods are so easily destroyed, and as a parent I would never ever forgive myself.