Only if you give them a reason to declare you incapable of looking after yourself, but cruelty probably won't be there (maybe it would be, though). Learn to look after yourself, whatever home you'll be left with, paying bills, budgeting and so on, and all will be fine. I doubt they'd do it unless someone brought it to the attention of the government, as they'd rather people live in their own place even if they have poor self-care; as long as things are paid for, no one cares too much how rundown things and/or people look (I guess this depends, though, as sometimes there's weird community stuff that you have to abide by, which is really goddamn stupid, but whatever). Not bringing attention to yourself, not making a fuss and avoiding the eyes of the government is generally the best course of action
I'd rather go homeless than live in a government facility or group home setting, and I would.