It's a fact that a significant number of means-tested benefits are not claimed because, for a number of reasons - amongst them, literacy problems, a lack of education/understanding, embarrassment, learning disabilities, early stage dementia, etc. - not everybody knows what benefits they may be entitled to or how to claim them. So it is the most vulnerable people that are likely to go without.
To call anyone who is not in receipt of Pension Credit "richest" or "wealthy" is, as others have already stated, completely misleading.
As for the care costs proposals, I need to check exactly what the wording is and what is intended.
Not everyone can look after very elderly parents, especially if they have complex health and personal care needs or if they have very challenging behaviour. Many people are not in the position, with rents and mortgages of their own and children to support, to give up their work in order to look after their parents or relatives. It seems to me that so much is demanded of families these days and whatever decision they make regarding the care of their children and their ageing relatives will be deemed by somebody to be deserving of criticism.