Humans have more similarities than differences despite growing up and learning in vastly different environments.
If we all had to learn by experience that walking off a cliff doesn't work, there wouldn't be that many people around. Fear or lnowledge of falling is intuitive. Which is why most here seem to agree that letting oneself go downhill, in essence falling briefly, is non intuitive and most fight it. It represents danger and must be learned that it's actually easier and safer if one goes through it.
I disagree and have three kids and two grandkids that have all proven that wrong. All smart and have done well but all would have crawled off a ledge it we let them. It isn't until they fall a couple times and put two and 2 together that they learn this.
As far as us all not falling off of cliffs, I suppose it's because there are 1) parents to stop this and 2) not that many cliffs.