For some reason, your story reminded me of my old grandfather. In his youth he got into the army because that was a way to get out of a deep rural area and out of poverty. When it was time to choose specialisation, he was called into the relevant office and asked: "Medic or fighter pilot? Pick one!" He equally had no clue what either profession is about. He picked medic by way of a mental coin toss and off he went. Had a long, successful and satisfying career as a military doctor for over 40 years. Once I asked if he ever reflected on that day and what - in his opinion - would have happened if he had made a wrong choice. To this he replied: "I could not have made a wrong choice. Either of the two would be the right one."