They train so hard and from such an early age that they lose what I define as a healthy childhood Impressive physical skills though...

#1 This part of their childhood seems pretty healthy both physically and mentally compared to what I had. Different type of society, though.

Walls don't hit back

The saying is "An armed society is a polite one", a society where a large number of people have training like this is also a polite one. However...in my eyes, when ANYTHING is taken to extremes, like this, it is not necessarily a (mentally) healthy one. The concept of childhood as we think of it in the West, and as they appear to think of it in the East are two entirely different things. As to which one is right? You make up your own mind about that.

#6 I concur. And it appears the girl at 2:46 might as well.

#2 Sounds great. But not quite an option for most children, I think.
I'm certain, that you can imagine worse alternatives in our current world.

@4
It's called conditioning and I've taken Hung Gar style before
Basically when they actually hit YOU, you better be a wall in order to take the hits

#3 and #5, you could not have a better childhood than this, sorry, not to criticize the pressure, competition and push into early adulthood in that video, but...still nothing like #3's childhood..

I had a great childhood that taught me responsibility and discipline first, and fun second. Was raised on farm in NM, milked our cows every morning before school and chores after, herded cattle and camped for neighboring ranch and pushed and tied wire on the back of a baler for 50 cents a day. Drove a truck, tractor, and model T truck on the farm. Helped pick fruit off our 2,200 apple, pear, peach and apricot trees, had to put the brake on the windmill during storms, raised and entered sheep and pigs in county fair, we raised what we ate, we would cut down our Christmas tree in national forest due to my dad allowing the farmhand go fight forest fires when needed, used horses to go deer hunting, shot dove and quail, fished for trout in a lake only accessible by one lane gravel road over the Devi's Backbone. Then there was the time my buddy and I took turns water skiing using a dead pig as a ski being pulled by a tractor in the river, etc. etc.

Parents sold the farm and we moved to Dallas when I was thirteen but that's another story.

I think nothing replaces a childhood like yours #12 and again Geekster's too, it's something you can live off for the rest of your life, something that carries you through adulthood...I did not have a childhood like that, although I can't and shouldn't complain, because it is what it is...thanks for sharing your memories #12..