Thanks for the input; you are all right logically, I should not give up the day job to instruct. However having thought ahead before starting out on the “I want to fly for a living odyssey” I developed a cunning plan. If I do not move home, I have two flexible jobs as a means of supplementing the poor instructors pay. This means that for at least a couple of years I can afford to SUBSIDISE a flying school and some of its students if I have to. What I really want to avoid is poor money and a poor working environment, whether it is full or part time work, so the request remains the same.