I grew up in a farm family, my folks went thru the depression and WW2. The only thing that was off limits was spam and mutton for Dad. 4 years in the Pacific theater 1942-46 caused that. We ate everything that was put on the table. Mountain oysters were a delicacy at our house. I spend about 10 weeks a year in mainland China so can do well on the food there which is difficult for most. I believe that most folks aversion to any kind of food is in their head