I am unsure of the details but there is a "nursing home" for mentally disabled people across from my house (in Canada). It has careworkers there 24 hours. They come and go as they please (the door does lock though and they need to wait to be let it). Families come and visit. It seems like a great thing to have.

It is also close to a university so some will take courses and others find small jobs on campus, if they can.