I think you will find your parents ignored most of your pretend and other silliness because they were sensible people who understood that you were a child with childish thoughts. Now they don't, now they take it seriously. When I was a child I wanted to be a boy, lots of girls did. We didn't really want sex changes (we would not have understood the ramifications apart from anything else) we wanted to stand to pee and to do 'boys things' No one jumped on us and rushed us to gender clinics, it was mostly ignored and we grew out of it.
I would suggest taking a close look at some videos, then tell me if you think schools (from preschool on not just highschool) are teaching appropriate curriculum.
Are these really the people you want teaching your kids critical thought?
Maybe you do, maybe you are with those who think talking about genitals over the lunch table with preschoolers is fine, that lessons should revolve around social justice and race rather than grammar, mathematics and geography. If so we will be diametrically opposite on this topic.
This has nothing to do with critical thought, preschoolers are not yet at that stage nor should adult social issues be on their agenda. At 3-5 social issues should be about sharing toys, using your manners; and critical thought should be about building with blocks and jig-saw-puzzles. I use to be in early childhood education and children don't reach the first stage of critical thought until between 6-8. It was often called the age of reason and if you look at history 7 was seen as the age of childhood maturity. In medieval times court apprenticeships began at age seven and the Catholic Church offers first Communion at 7.
Even then children are very easy to steer aka 'brainwash' but they have gained enough cognitive ability to question things like Santa Clause. They start to notice things like chimney size verses a fat Santa, they question magic.
A 3 year old on the other hand is much easier to convince and will believe you when you tell him Santa is real and he will also believe you if you tell him he is a girl. He doesn't even fully understand what being a boy or a girl even means. The same way he thinks he can simply change his age. (I tried to find the video where the 4 year old claimed to be 7 but can't find it, I will post it if I do)
A 6-8 year old will question you more, doubt you more, but can still be won around quite easily, especially by an authority figure like a teacher or a police officer.
I really can't think of anyone who died in place of others they didn't know. A mother might dive in front of a bus to push her child out the way but that is because of her strong emotional ties to her child. But how many would die to save those they don't know, those who are not even asking to be saved?
You could say fire fighters die to save people they don't know, and they do, but their intent isn't to die. They go into a fire wanting to save and they plan to come out safely. What Jesus did is different.
Sure it counts but we can't shield ourselves from everything and as children we have virtually no power to protect ourselves at all. I won't site cases but you know the kind of headlines about abuse that goes on. We were all defenseless children at one stage of our lives.
Knowledge though has certainly helped. When God told the ancients to wash and quarantine they didn't understand germ theory and now we do. Now we know to wash our hands well without God telling us. But not everything coming at us is physical, its also mental and spiritual. Now you obviously won't believe in spiritual harm but I do. We are body, soul(mind) and spirit.
We don't always notice harm to the mind, people raised in toxic families don't always realize that their parent is a narcissist, they think its normal. Children are very poor at protecting themselves. Adults are much better at spotting things like this but still everyday women end up with abusive men because the signs were ignored. A lot of emotional abuse gets overlooked because some things are subtle. Often abuse starts tiny and grows. A bit like the frog being boiled scenario, the abuse goes undetected until it has reached a point that becomes visible to others but by then a lot of damage has been done.
Spiritual harm is even harder to see and understand then emotional mental harm.
Many of God's laws were about this.