I think you will find that people who do work & pay taxes all thier lives are entitled to a little help with board & lodging!
I would struggle to find anyone who works & pays �500 a week for a one room, shared bathroom, shared lounge, no privacy, no choice of meals set up, as it is in many care homes.
My late Nan set up some accounts in all her Grandchildrens names after she had a fall to disperse her 'assets', but this was done before she went into care......
Sorry I couldn't be more help, I hope you find a way for hium to recieve help with his payments!