According to Wikipedia, the ages of the people arrested in connection with LulzSec were (sorted): 16 17 18 19 19 20 21 21 23 24 24 29. Plenty of teen representation there, and even low 20s is still pretty young. (Those ages are at the time of arrest, but most of the arrests were in 2011, the same year LulzSec was founded, so they would have been about the same age when they committed the crimes - albeit likely younger when they first got into the 'scene'.)
Similarly, Lizard Squad: 16 17 17 22. (Main activities were in 2014; ages adjusted based on the number of years between then and the news articles specifying the ages.)
Neither of those groups were terribly sophisticated (mainly performing DDoS attacks), but neither is the person(s) in the present case, who just culled passwords from old leaks and got the media to make a fuss.
Anyway, getting arrested ≠ committing crimes. To get arrested, you have to (a) go after a high-profile target and (b) successfully attack them (where DDoS counts as an attack). Lots of kids do things like DoSing personal rivals (and their Minecraft servers), which is definitely a crime but unlikely to result in an arrest. The younger, the more petty...
The majority of hackers in the modern day do what they do for financial gain. Among that group things are more even. But the skilled hackers, those that develop and use 0days, will skew older because it takes time and experience to reach that level.
It's a shame you can't have Find My Mac active without also allowing remote wipe. So I disabled Find My Mac for myself.
I would posit that most people engaged in cyber crime are not hackers, from the botnet owners who literally paid for and downloaded a tool with instructions, to the people who install skimmers, to carding merchants, people running protection rackets, email scammers, etc. A small number of people actually "hack" into a system using any form of advanced skill in order to do things like extract accounts like those in the article.
What definition of hacker are you using here? I know we're on Hacker News, but in the cybersecurity context hacker refers to someone who hacks into a system, which would mean hackers commit crimes by definition.
EDIT: I pasted the wrong thing