Okay. I'm trained in this.
You need to be providing age-appropriate sexual education to children from as young as you possibly can.
When kids are really young this looks like "Yes, that's mummy's vagina. Please leave the bathroom because it is rude to be in the bathroom while mummy is using the toilet. Mummy is placing her boundary, sweetheart, and you need to respect that."
"Yes, daddy does have something different to mummy. What daddy has is called a penis. Yes (mummy/daddy's penis/vagina) is the same as you."
You will notice here that I use the anatomical terms for these body parts. That is for a reason. It helps your child if something does happen better be able to disclose, exactly, what has happened to them. You do not want your child trying to disclose using words such as "secret pocket" or "hidden flower" or "willie" as this can obfuscate meaning. Imagine, if you will, Maisie trying to disclose that Coach Asshole touched her sexually by saying "Coach Asshole stuck his stick into my secret pocket," to a teacher or family friend who does not know that those words are euphemisms. Maisie has tried to disclose, but has been unsuccessful because she does not have the language that she needs.
Children, especially girls, can start going through puberty young. Like, really young. I have taught 9 year olds who menstruate. We need to be teaching these children about their bodies. We need to be teaching boys about the bodies of people who menstruate. There is so much misinfomation amongst grown cismen about menstruation because they are not taught it in school.
We also need to teach children about consent and bodily autonomy from as young as possible. This sets them up that even if they do, unfortunately, suffer abuse of this form they are vocal in their protestations and are more likely to disclose than children who have been taught to accept that adults can do whatever they want to a child's body. Granny kissing little Maisie on the cheek doesn't look that different to Coach Asshole calling his girls at gymnastics "Special girls" and kissing/touching them inappropriately, especially to a child (who, usually, have a much less refined emotional radar and both will cause them to shut down and just accept what is happening. You want your kid to be able to say "No, what you are doing/did to my body is wrong.")
How should adults behave around children?
Firstly - my golden rule of interacting with children is If you have nothing to hide, don't hide anything.
This means when you are interacting with children you always do so in an area where you will easily be visible if another adult happens to walk by. No closed doors, try to minimise rooms without windows, have another adult present.
The reason you are doing this is to make it flag as strange and unusual to a child if an adult tries to get them alone. Safe adults do not do that. By making sure you are transparent in your behaviour, the child is more likely to flag something being wrong when someone is not transparent. You are equipping the child with skills to protect themselves.
They will also be more likely to disclose to another adult that an adult was trying to get them alone.
(There is a little bit of an exception to this rule but to begin with, no secrets.)
This leads back to transparency. A safe adult will not ask a child to keep a secret from another adult. If Uncle Jeff is telling Nancy to keep "our little secret" when he gives her extra dessert, then Nancy is prone to believe that keeping a secret from another adult is something she's supposed to do when Uncle Scumbucket asks her to keep his inappropriate fondling of her as "our little secret." Children who see secrets as unusual are more likely to disclose that an adult told them to keep something a secret.
This is also important as grooming usually starts as "we need to keep you getting this special treat as our little secret." Uncle Jeff giving Nancy more icecream out of the goodness of his heart looks a lot like Uncle Scumbucket giving Nancy candy and lollies and extra screentime in an effort to get her to like him and Uncle Scumbucket's secrets are going to move on to "Sit on my lap today, honey, but don't tell your mother. Remember, this is our little secret." And eventually to Uncle Scumbucket asking Nancy to keep sexual activities as "our little secret."
You do not want children thinking that safe adults keep secrets.
Thirdly - this ties in a little with secondly but Teach your child the difference between a safe secret and an unsafe secret.
If you are unsure of the difference yourself -
Does not hurt anybody by the keeping of it, including yourself.
Is usually accompanied by a feeling of excitement
Has an end date where everyone will become aware of the contents of the secret.
A safe secret is a surprise birthday party, a camping trip, a surprise trip to disneyworld, pizza!
Can hurt someone and can hurt to keep
Is accompanied by a feeling of nervousness or dread or shame
does not have an end date. The secret is ongoing.
You can see how Uncle Scumbucket's secret is unsafe, but also how Uncle Jeff's secret is unsafe because Uncle Jeff's secret does not have an end date. Uncle Jeff's secret is unsafe because it is priming Macy to see Uncle Scumbucket's secret as reasonable, which leads back to the grooming discussed above.
Lastly, and this is very important -
'Protecting' children from having access to sexual education actually does them an injustice.
We do not live in a perfect world.
Bad things can and do happen to children, with depressing frequency. Get me drunk sometime and I'll tell you what I'm legally allowed to disclose of the stories where terrible shit has happened to children I have cared for.
Pretending that they don't happen means that if they do happen, children are unable to recognise and respond appropriately. You are making your child less equipped to protect themselves, not more.
Children who are taught age-appropriate sexual education from a young age are so much less likely to be in a situation of sexual violence than those who are not taught age-appropriate sexual education. Children who are taught age-appropriate sexual education are more likely to disclose if something does happen to them, than children who are not.
And for God's sake teach them the words 'penis' and 'vagina/vulva'
