Actually, there is a lot one can do to test and examine whether they like something or not, or if they actually like something for the reasons they do, etc. I've actually seen quite a few cases of people's claims about their food preference being demonstrated as incorrect by blind tastings, whether motivated by bets or just curiosity. And you can see people's enjoyment of foods evolve as result of them untangling the psychological components from the more fundamental enjoyment of taste. Although food preferences is sometimes one of the easier things to test, and this is not even getting questions of efficiency (i.e. if one could be finding better enjoyment elsewhere).
Of course people don't test all of their preferences and enjoyments, whether because of ego, laziness, or because even the most inquisitive, motivated person lacks enough time to test everything. Sometimes you have to go on what you have or what others give you. Although I wouldn't call that irrational, as being rational is about dealing with what you have, not being clairvoyant.
Actually, there is a lot one can do to test and examine whether they like something or not, or if they actually like something for the reasons they do, etc. I've actually seen quite a few cases of people's claims about their food preference being demonstrated as incorrect by blind tastings, whether motivated by bets or just curiosity. And you can see people's enjoyment of foods evolve as result of them untangling the psychological components from the more fundamental enjoyment of taste. Although food preferences is sometimes one of the easier things to test, and this is not even getting questions of efficiency (i.e. if one could be finding better enjoyment elsewhere).
Of course people don't test all of their preferences and enjoyments, whether because of ego, laziness, or because even the most inquisitive, motivated person lacks enough time to test everything. Sometimes you have to go on what you have or what others give you. Although I wouldn't call that irrational, as being rational is about dealing with what you have, not being clairvoyant.