I've read several articles about this. The creators of the 401k apparently knew nothing about human behavior. The 401k/403b system works just fine for people that choose delayed rewards. It doesn't work for instant gratification, which is most people.
Having said that, letting the average Joe or Jane manage a big chunk of money over a long period of time is a recipe for disaster.
I agree. But in the populace's defense they aren't being educated what to do either. I've asked hundreds of people (varying ages, backgrounds, etc) through the yrs what kind of education they were given about 401k/IRAs, etc, when they were younger. They all say the same things, "none." The vast majority of the population was not taught at an early age, " Hey, this is a retirement plan, here's how it works, here's what you do, you better use it or you're screwed." Schools didn't teach it, parents didn't know enough about at the time to teach it, etc. And when I ask HS aged kids around the Bluegrass they still aren't getting the info......