My paternal grandparents & maternal grandparents are a good example of where it's all gone wrong, economically.. I loved them but if my family are typical, I've no idea how we're solvent!
Maternal grandmother: housewife, no paid employment, raised 3 kids, didn't pay any national insurance... Lived to 97 with complex health needs requiring about 30 years of intensive care. Bed bound.
Maternal grandfather: retired at 55, lived to 88. Started working at 15 but still only 40 years of work to a 33 year retirement.
Paternal grandmother: odd "cash in hand" jobs (cleaning, ironing) now and then, housewife other times, raised 4 kids. Lived to 89. Needed round the clock mental care (Alzheimer's) for years before physical care also needed in the last 15 years.
Paternal grandfather: worked in a factory, again from very very young age, helped on farmwork before that as a child.. but retired in early 50s from ill health, passed away in late 80s, in hospital, after needing care in a care home (house not adaptable for wheelchair).
If you consider the Idea of "paying in" so that you can later get support needed.. well, my generation simply won't get that level of care,the numbers don't add up.
Our welfare state wasn't designed for 30 years of complex care provision for most people, we can already see it failing and yet none of my family had paid into anything other than a very basic personal work pension..so they had huge council/NHS support plus a small personal pension.. the saving grace was that both granddads had their "defined" pots (the kind where the council ask for monthly payments but you get a guaranteed final pension, not the shit modern kind I have where you don't have a guaranteed monthly pension).