I have always taught in either a grow bag or a collar and tie. However I see nothing wrong in polo shirts of similar AS LONG AS they are uniform. Everyone wearing the same monikered polo shirt, name badge and trousers would be acceptable I imagine.
Let the professionalism atmosphere come from the language, the bearing and the deeds of the instructors.
One week I was being charged out at £75hr for PA28 PPL
instruction wearing my own combination of uniform & CWFJ at a PPL school.
The next I was being charged out at £160hr for PA28 PPL instruction wearing my own combination of uniform and CWFJ at an Integrated school.
In the final analysis the professionalism isn't related to the dress code, nor the price.
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