It would probably make sense for tutoring, why don't you just try it. At work our admins use Windows desktop remote connection. I think this is included in windows. It gives connected party a full control, we sometimes fight for a mouse swing, I roll it one way while admin is trying to roll it the other way. But, at work this is a given, we do not own the PC and intervention is easily accepted. Not sure how will it work with private parties. Might look alarming.