I did not, in my early adolescence, have the clarity to answer the question often posed by adults “what do you want to be when you grow up?” with an answer that suited me. The question felt premature, as if somebody asking shortly after I jump into the pool “what do you want to do when you get out?” This line of questioning, “when you are not doing what you are presently doing what are you going to do?” is distracting and belies a selfishness on the part of the questioner. They are not so much interested in your plans as they are interested in you paying attention to them.
A subconscious motivation of the questioner is to cause a sense of anxiety in you similar to one they are currently feeling because they themselves are worried about what they will do when not doing what they are currently doing and thus think you should be too. Anxiety is infectious. A quick response to the posit in the pool analogy could be “I have no idea but, if you’ll excuse me, there are pressing aquatic matters that need my immediate and undivided attention." And then swim away from the questioner with great haste and continue to enjoy your treasured time in the pool.