Are you underestimating how much people lie, even to themselves? Esp here. “Hey; want to be part of a study where we give you free money to see if it helps you

Are you underestimating how much people lie, even to themselves? Esp here. “Hey; want to be part of a study where we give you free money to see if it helps you out?”… “Ok, now how much of that money did you use on things that were harmful to you?” You could perform that study with anyone and you’re going to get BS answers and estimations.