I have a 2nd cousin like this. 30+ years have fried his brain. He's totally unemployable, makes Ozzy Osbourne look really smart and alert. Sadly the drugs have caused irreperable brain damage. He's no use to anyone and has one child who went into care, her widowed Gran saves hard to help her.
Luckily lives as sad as his are few and far between. I want to cry whenever I bump into him in the street as he was a lovely bright child and it's such an awful waste of a life. He only gets dole, no additional disability benefits and exists in a council bedsit.
His only use is as a scary warning to the teens in the extended informal family and friends network for the "just say no to drugs" campaign. (Result = very anti substance abuse youngsters in my family). I'll consider it a failure if my son ever needs an introduction.
He's one rare individual, however I know far, far more struggling with ill-health/disability/age etc to be productive in some capacity.
The single Mum who earns an extra tenner cleaning on top of her benefits to save up for a computer to help her dyslexic kids with their school work or the redundant Dad who paces the west end every day looking for work for over a year before getting something minimum wage. Despite that on my inner city estate everyone helps their ill or elderly neighbors and helps out if a family has no food left in the cupboard. That's my day to day reality.
Lack of opportunity is a far more common scenario around me. Daily I see people who are TRYING so fooking hard, and not getting very far. Training and educational opportunities have been drastically slashed so the builder whose back can't cope anymore with site work CAN'T financially afford to retrain into office or nursery work, even though they desperately want to.
We need lifelong affordable retraining opportunities desperately, we need better funding for sme start ups. The will is there but the chances aren't for so many. Since 2007 many friends have had a rude awakening on experiencing the joys of a job centre for the first time. It's suprising how many middle-class families are only one paycheck from real problems financially.
Part-time/occasional agency work is harshly punished by the current benefits system and it shouldn't be as it's often the only way to get a leg into full-time work.
The over 50's and the young are having a tough time right now jobwise. Disability happens to us all eventually as a result of old age. I'm a firm believer that the measure of a society is how it treats it's most vulnerable & right now we in the UK aren't doing too well.