Having made this clarification, it is obvious that you bitcoin investment cannot be a full time job but a side hustle if you choose to call it so. However, bitcoin trading can indeed be a full time job or a side hustle but it depends on the trader, their level of experience, goals, and many other factors. Only the individual can say whether they can it to be a side hustle or their main job. A lot of persons are doing it, therefore it is possible but you must weigh the pros and the cons and seek counsel before making that move.