Those are the people that will probably never retire then as they spend too much. Nice to enjoy 'things'(probably lots of wasted money) but being a slave to a job at age 60+ might not be much fun.
I think many overestimate how much they need. When in your 30's and 40's you may think you would need a huge retirement income but when 65+ you may find have health issues, start losing energy to do so much anyway. My parents now in their 80's save loads as they're mostly housebound now, pretty much. Mum has a partial state pension and dad has a company pension too but it's not massive
Yet another reason not just to save endlessly now. If you do become house bound you're going to use so little.
And at that point... what even is life.