Rule 10: How difficult is it to play tight?

Is playing tight in poker hard to do? Sitting there all day without playing very many hands? Folding hands hour after hour? Let's put this issue in perspective. We're talking about free money here. (We're talking, generally, about low-limit games here.) If you do this (and keep doing it), you will often get free money in return. Remember that there are people who are toiling from dawn to dusk in disagreeable jobs for money “ digging ditches, doing roadwork in the hot sun, washing dishes in restaurants fourteen hours a day “ the worst possible jobs imaginable.
Are these things hard to do? All we're being asked to do “ the great sacrifice we're being asked to make“ is to sit in a comfortable card-room
and play tight, doing nothing when we get bad cards. How hard is this in comparison? So we need to keep this issue in perspective. People do any number of disagreeable things in the workaday world for money, but when it comes to poker, we can't just sit there and fold marginal hands?