No, because we don’t have enough people younger than 40 to support half the population being retired, let alone the productivity loss from the absence of later career workers, nor the loss of capital and tax income from those age groups. The only alternative would be autonomous robots and they require the skill and capital those age groups provide and autonomous robots are way harder than iPhones and TVs!
But still, some people live on as little as possible and invest in their retirement aggressively. I have some friends who are into this, they drive that same shitty car from college, live with roommates, cook everything at home, etc. They are content living with that knowing they are investing for retirement in their 40s.
If you wish to retire on the median standard of living from 2024, well, that's gonna cost median wages from 2024. If you want to retire on your standard of living, well, you'll need 40 years of your income to last you till 80. That's hard to do.
The median standard of living nowadays is lightyears ahead of the median standard of living from 100, 200, etc years ago. That's almost all productivity increases spread around to all of us.
There is a whole movement around it called FIRE.