[k__]

"Earning a living should not be a problem in the modern world"

But it is.

15% of the population have an IQ of less than 85, that's about 48 million people in the US alone.

Not even the military thinks they can do anything reasonable with them (if you under 83 they don't want you so it's probably 1 in 10 people, I guess) and they try to get as many people as they can.