If you have sufficient resources of your own, then you pay.
Otherwise you can expect some help from your Local Authority subject to a Social Services assessment.
You are entitled to an assessment whatever your resources.
(Public Services Official Website) for more information.
DirectGov is a good website, with masses of information, but if you're like me,
you'll find it impossible to read all of it. Make good use of the search box in the
top right corner. Its helpful for finding the right pages.
As with most benefits systems, its quite
complicated and takes some time to work out exactly what is your entitlement.