Child Rearing Exposure

Because kids are highly impressionable and have limited ability to make sound judgements?

You should be thankful that you were fortunate enough to have children bright enough to learn that lesson early in life, and who are capable of abstraction without direct experience. Other people's children don't pick up those skills until quite a lot later. The implication of what you're saying is that you think the children of parents who don't teach them this important lesson early enough should be allowed to die. That's an incredibly harsh outlook.

It's amazing that people still think children will learn anything by being shielded from the real world.

That adults know better is a myth. They don't. It's not about knowing better, it's about being taught to be reasonable with the thing, and that takes long exposure to that thing, ideally with the support of a parent.

People are indoctrinated as children. Overcoming the threats later on in life is very difficult.

from what i've seen only children tend to grow up more spoiled and with worse social and coping skills.

That's what happens when parents restrict kids instead of teaching them about the dangers.

That's pretty harsh and really incorrect. Some people didn't have great role models growing up to teach them these things and have to learn them themselves later on.

The more we do this stuff to kids, the more the real world is going to kick their ass.

The kids will figure it out like you did. Maybe the terrain has changed, but there was noone to tell you whats what back in the day anyway, so why worry? Or rather, emotional maturity can go both ways here: jumping to a paternalistic mindset will rob you the wisdom the kids themselves can give. I think its natural and probably right to feel concern, but don't overcorrect it into presumption or into a false idea that you can just give to kids what you had to learn/discover yourself.