The decision as to where standards are set should be made by people with an obligation and the power to collect and consider all the relevant information, including all costs and all benefits. That’s not CASA.
Non-experts are perfectly capable of making good decisions, provided they obtain and consider, among other considerations, the advice of experts.
But please, go through the exercise with a bunch of aviation experts then tell me, precisely, where the minimum licence standards, the minimum aircraft airworthiness certification and maintenance standards, and minimum aerodrome standards should be set for ‘community service flights’, and why.