IMO one of the 'electrical' agencies, groups or orginizations should take a bold step foward and advocate a national benchmark.
It would be a benifit to the trade as a whole if this were so.
Inasmuch as it is a free & democratic society in which anyone can perform a do-it-yerself labotomy, the creation of parameters on a national scale allowing electrical work to be done for others should be viewed as a preventive measure.