We forget there is no "teaching 101" for instructors.
There is in the UK, the British Aikdio Board has a coaching accreditation programme that runs to 11 different courses at three levels. This covers all affiliated organisations across many styles of aikido and the coaching level 1 is a prerequisite for insurance cover under the BAB. This in turn sits under a wider scheme called Sports Coach UK. There's even an online searchable database of everyone's qualifications, pass dates and certificate numbers.
I guess this could be seen as anywhere from a bureaucratic straitjacket to a comforting level of professionalism depending on one's perspective