This is an excellent example of why the original question is extraordinarily comple x to answer fully.
On any thread about care costs, there are plenty falling over themselves to opine about the righteousness of paying one's own care costs, and factoring in that eventuality to their daily and working life.
My poor MIL (terminal end stage dementia but in the same bracket as Cher and cockroaches as of today, bless her) desperately wanted her son, my now late DP to benefit from her hard work and proceeds from her modest, less than 100 grand flat. Obviously didn't happen. She's been in her home for 7 years. The money ran out after about 2 years. They now hoover up almost all of her pension every month.
Those who never accrued assets for whatever reason are at the mercy of the system from cradle to grave, and for many it's despite trying to make the right choices but suffering series of unfortunate events. The more complicated life has become, the more the goalposts change, the more difficult it becomes to achieve security.
There are no easy answers, but the idea that everything financial can be solved by just making better choices is extraordinarily naive, based on both my own experience and observation.