plays a meaningful role in people not contributing to retirement. I put off things all the time where I know its going to take an hour or two and paperwork and me getting documents together. Because doing those kind of things sucks.
Obviously, if you're forgoing hundreds of thousands of dollars (or even millions) of dollars worth of benefits in retirement just because of the hassle of a few hours per year to set up something like that, its a poor decision. But it's hard to grasp that kind of concept if you don't have experience with it or have someone you trust who will walk you through it. It's also why I think there will always be a market for in-person financial advisors--people who can smooth the transactions costs in a way that makes it palatable for people who are on the fence about retirement savings.