@user27424799642256
Fortunately, he was housed in supported housing specifically for young people where he received support and responded well to strict boundaries.
How was that accessed? Application ? Assessment ? Referral? Eligibility conditions? Waiting list period?
How would the op find that sort of provision? What type of scheme was it? Who would she need to speak to? What would she tell them she was looking for?
In England, this is done by applicant presenting themselves to the council as homeless. If they think it appropriate, they then refer on to whichever organisation runs the supported accommodation (here it's contracted out to the YMCA, but there are many other charities, inc Salvation Army, who run similar schemes in other areas).
The schemes I know of provide each resident with a bedsitting room that has an en suite shower and toilet. There are communal kitchens, each shared by 5-8 residents, and communal areas for watching tv, playing music etc. There's also a room with computers for residents to study/apply for jobs, and a games room with consoles and a pool table.
Each resident has a key worker who helps them develop independent living skills, including managing finances, looking for work or applying for training, cooking, cleaning, self-care etc.
Once they have made sufficient progress, and are ready to move on, they are then supported to move out and into a PRS property (with deposit and rent in advance lent by the council) or sometimes, if they are still considered vulnerable, into a council flat.
In my previous job, I supported a few young people through the move-on process. They were, without a doubt, the most challenging client group I have ever worked with (and that includes MH issues, ASCs, DA survivors, ex prisoners, refugees, LDs, addicts and probably many more).
Even if the council isn't the referring agency in the OPs area, that should be her son's first port of call if (when?) she tells him to leave, as the LA is the agency that has a statutory duty to (try and) prevent homelessness. They will know whether such a referral is appropriate, and who he needs to contact to get referred.