This has now turned into a really excellent thread imo and it's exactly the sort of thing mumsnet should be for, especially given that a recurring theme is our concerns for our children's generation!
Seconded to whoever it was above who advised that those of us who can should start investing a modest amount in a pension fund for our children. We plan to when ours is born, it won't make her rich when she's older but I will hopefully mean she's got a bit of a pension and thus won't end up being one of those pensioners who can't afford to turn the heating on. Nobody should have to live like that. 😢
Many thanks to all those who've contributed advice for those of us lucky enough to be in a position to make provision for our future as to how best to do it.
On a practical level, one thing I would invite as many as you as possible to consider is trying to get a civil service job for a while. They aren't all Whitehall jobs for Oxbridge grads! The pensions aren't what they used to be but its now a career average salary scheme instead, which I actually think is fairer to all. It means if I get burned out towards the end of my current higher risk, higher responsibility, higher reward role I can go back to a more modest role but my pension will still reflect the years I spent in the more senior role, and as such you won't get people hanging around in senior management posts they are too knackered for just to protect their pensions. If I've understood the Alpha scheme right, for every year you spend in the scheme, you get 1/42 of your career average salary, up to a max of half your salary. So if you do a decade in the civil service, you will get roughly a quarter of your career average salary as your pension. Say you earn the national average salary of £26k (I think that's the current average?) as your career average during your four years there, you'd get an annual pension of £6.5k. It's not a fortune but for a decade of pension savings you'd have to do quite a lot in the private sector to build up a pension of that level. If you own your own home and get state pension on top then you'd be alright on that. Not rolling in it, but you'd be able to cover your essentials and the odd treat here and there too. You can also choose to pay extra to buy the right to retire on your full pension up to three years early, which imo is well worth doing (so now I can retire at 65 rather than 68. Still not that young, but three years of freedom is a long time!)
I entirely agree with the posters above who've said one thing we need to adjust is our expectations, based on life expectancies and the cost of living vs wage rises (or lack of). Our current state pensions situation IS unsustainable long term and I suspect by the time I retire state pensions will be means tested, and if that does end up being the case I will be pissed off that as someone who has paid NI contributions my entire life I won't get it, whereas people who (for example) get NI credits as a result of choosing to stay at home with their kids because their partner earns enough for them to not need to work will still get it.
It is worrying how many people I know my age (mid to late 30s) who haven't made any provision for their retirement at all, or who have only just recently started doing so....and these are not people whose finances are on the margins either and couldn't afford to. There's a worrying amount of heads in the sand out there!