Nothing about these "junkies" makes any sense.
Twocking eggs and bread is hardly going to feed a habit. Leaving drugs in phone box libraries and grit bins isn't something they'd do, unless they are monumentally daft.
If they are as much of a menace as you're making out, they'd have been dealt with far more swiftly than the years it's taken to get to this point.
Your failure to grasp what happens in the real world is startling.
The Tool's experience is common, mundane, happens all across the country.
Regrettably, as this thread shows, there are far too many people inside the system and outside it who are apologists for young offenders.
Mind, that sympathy tends to evaporate when their lives are blighted - as has happened with the Tool.
As
@BoldonLad observes, someone with 200 or more previous convictions no longer raises an eyebrow.
Given the pathetic clear up rate, it's safe to say those people have committed five or six times more offences.
Every form of disposal has been tried, over and over.
None works, so the only thing left available to us is a decent dose of prison porridge.