Speaking of the brother of someone who is now 25 and still acting like Jake (so into his music he can't hold down a proper job, but doesn't even try very hard at what he says he wants to do, perpetually stoned, immature, spoilt and middle class), i think JM did the right thing.
My parents have just gone on putting up with my brothers drugs, self-righteousness and refusal to grow up since he was 13, mainly because my father refuses to stand up to him, and 12 years down the line he's still living at home, still quitting every job he gets within a few weeks, still contributing nothing, and still managing to find money for drugs.
My mother has been through merry hell, and quite often found that the only person who knew what she was going through was JM in her column living with teenagers. If people don't write about these awful experiences then others who are going through similar will never know that anyone else understands. That's why we write at all, to share our experience of the human condition.
Jake is a grown man. He was a grown man at 17, old enough to leave school, get married with his parents consent, have sex, drive a car etc etc,why should his parents have put up with him any longer?
He's a spoilt, arrogant leech who needs to grow the fuck up. My dad is working class, worked full time from the age of 15, never asked his parents for a penny, got married at 18, had his own business by his late 20s and was a trained barrister by his mid 30s, all off his own back. This was all during difficult economic times of the 70s and early 80s. These priveledged wastrels have no bloody excuse and will live to regret it, if they aren't already.