Figure 6 breaks it down by age and the lowest non-working is 25-64
While it has increased over time, the 16-64 is 18.4%; 20-64 is 13.0%; and 25-64 is 5.7%.
If you're under 30 the (global) economy sucks.
“If the same share of U.S.-born men (16 to 64) were in the labor force in 2025 as in 1960, there would be 8.9 million more U.S.-born men in the labor force. Even if the share returned only to the 2000 level, it would still add 4.1 million U.S.-born men to the labor force.”
link given above:
https://cis.org/Report/WorkingAge-Not-Working-1960-2025
“The share of U.S.-born men ages 20 to 64 (i.e., excluding teenagers) without a bachelor’s degree who are not in the labor force roughly doubled from 7 percent in 1960 to 13 percent in 1980, to 15.9 percent in 2000, and to 21.3 percent in April of this year.
“Of “prime-age” U.S.-born men, 25 to 54 without a bachelor’s, the share not in the labor force increased from 4.2 percent in 1960, to 10.6 percent in 2000, to 14.8 percent in April 2025.”
https://cis.org/Report/WorkingAge-Not-Working-1960-2025