At work, I think decision overload is a factor. It's not irrationality; they don't want more stuff to think about, especially because food is a break. People li

At work, I think decision overload is a factor. It's not irrationality; they don't want more stuff to think about, especially because food is a break. People like free food because it doesn't require thinking. You just walk over and get a soda and chips. You don't think about it. You don't have to make another damn decision (even though, with 200+ empty calories on the line, one probably should) in your workday. Of course, then they gain 20 pounds over 3 years and resent their employers (and commutes) for all those extra hours and such... or, if the employer switches over to healthy food, they get angry about the paternalistic aspect... this is hard one to win.