I'm going to throw a brick into the mixer by saying the following regarding airmanship. If you have called Final, or, have entered the cleared Active Runway and advised such, or, have landed and are manoeuvring upon the active runway, the runway is "yours". The choice to taxi in the centre, right, or left side of the runway is "yours". The decision to allow another aircraft to enter the Active Runway while you are still manoeuvring upon it is "yours". It is also your responsibility to lead the situation and communicate with awareness of the situation. As pilot in command the decision to abort your take off, return to the parking area, shut down the engine, and boot the "passenger" in the right seat out of the aircraft, is "yours". Some airfields simply will result in the aircraft becoming bogged in mud unless remaining upon the centreline; so this offset taxi rule is not practical is it? Other fields have a terminal or parking at either end, so if the instructor gives you unwarranted grief and you own the aircraft you can boot them out and make them find the gate code to walk back; they might cause to rethink their abusive performance. At the same time being unnecessarily stubborn egotistical and uncompromising in the subjective situation will not help either.