I don't expect to reach retirement age as it will keep increasing. If I do make it that far, I expect having to work so long to get there that I will be pretty much a husk of a human.
That isn't to say I'm not paying into one, but I probably am in the 'not adequately saving' group because I want to enjoy the time I have now as best I can.
The future is terrifying and causes a lot of anxiety...
Edit: also wasn't the state pension supposed to cover a basic retirement!? Fuck.
I believe you could scrape by on a state pension if you have your accomodation paid for, but it'd be absolutely no frills and if your rent is £1000pcm, you're absolutely fucked.