I think the population who are able to meet those numbers is small. Many would have had to start investing by age 30 to meet those numbers and invest in the right stocks or funds. Hopefully they were invested right in 2000.
The retirement haves and have-nots -
Bloomberg
3 out of 5 Americans don't have the funds to pay for unexpected expenses -
Yahoo finance
What about those who bought a home in early 2000 or mid-to-late 90s near a beach that has increased three or fourfold and it may also serve as an excellent rental for cash flow. Or those who work for the city and get a pension.