In my country, people ask you “what do you do” in order to know who you are. They especially ask this of men, as certain women still feel comfortable describing how their husbands make a living in order to answer that question.
But when you’ve finally given or thrown away most of your belongings, sold the rest and moved across the world with a couple of suitcases in hand, chances are there is no answer to that question. At least there is no answer that would impress anyone in a casual conversation. Thoreau wrote about this in Walden. His neighbors were sharply critical of him for not striving to get anywhere, to fight for any cause, to help the unfortunate or weak. He was just taking care of himself! A sin, to their way of looking at things.