Sorry, I messed up my timeline *lol* it's been a while since I was that age... I'm 22 now and getting 23 this march.
However, I practiced every day in the morning and then after school and as a neighboor I was very lucky to have the Karate Champion of Berlin, Germany. So he taught me the pooms and breaking techniques.
And when the big day of getting a new grade was, after I completed the actual performance, I asked the teacher if I could go on. He asked me going on with what and I told him with my qualification. So he let me, he was quite impressed, but he told me, I may not skip the ranking, but I don't have to wait too long for the next promotion as long as I keep on the track and don't lose control (likebehaving arrogant). And so, I made it :) [sorry maybe for the bad english, cause I'm not born in the states]
Yeah, I know this sounds like McDojo (*LOL* what an expression!), but maybe keep in mind, I started at the age of 6 and it was a two times a week school.
Whatever, maybe it was not right to give me those ranks so early and I did not earn them, but I think this was an upright Korean man named Young and he knew what he was doing.
At the Shaolin Temple in China, there are kids too, who were taught the real rough stuff.
No, me neither believes that this great art is just for fun. It's for building up physical and mental strengtht and with that, you are a warrior, because you have a weapon - further more you are the weapon.
The funny thing, I bought myself a book "hand to hand combat in the united states marines corps" and they are using martial arts very explicit there. They also lean on the Dim mak where you aim at the opponent's body pressure points. And in the USMC they also carry their martial arts ranking on their uniform...
What I can say is, that if I had not entered the world of TDK, those guys in preschool wouldn't have had stopped from beating me up. The Chinese history shows that Shaolin monks were soldiers, too. Sometimes, to fight/defense is the only way to stay alive and protect others.. :-/
Better to have this knowledge rather than not, because it is definitely effective when well studied.