Yep it definitely happens to everyone! Agreed if most of them are staying, it means you’re already doing a great job. For those who leave after a couple of lessons, if you’re not sure that it’s for financial/personal reasons, you could always email them wishing them the best and saying you hoped they enjoyed lessons and to let you know if they have any feedback. I’ve only received semi-negative feedback once, and I was able to give it a bit of thought and I applied what I could and felt like a much more confident teacher at the end of it :). That said, you can *never* please everyone, so don’t stress it too much!