Earlier quoted context omitted.
It's true for life in general. It is a rare luxury to have and understand all of the information before being asked to make a decision. This is why fields like economics have traditionally been poor predictors of actual human activity, they assume an ideal that is rarely true.
Reminds me of the trope that the choice should ALWAYS be left with consumers. Every consumer is a 'rational actor'. Reality is most humans have too many things going on, too many choices with not adequate info and are emotional actors.
Not to mention the distortion of rationality created by advertising.