That is impossible to believe. Teens AND children only add up to 12%. No lol. The average age of league of legends pro is 22. None of them starting playing the game after 18. It makes no sense.
Then I already pointed out that the rank SBF was in is populated with the worst players, which is more likely to be children that dont have a fully developed brain.
According to that data, most players are between 18 and 34 years old, with children and teens being only 12% of the demographics.