Pilot DAR - I think we are on the same wavelength here. Not sure about the Canadian procedures, however, a number of our busy GA airfields are air/ground. in that whilst there is a 'controller', a guy on the ground who will give airfield information, they are not 'controlling'. Nor are the positioning. The are informing. It is all pilots responsibility to position according to active pattern, and there are reasonably set procedures on how to do this. The most important aspect is r/t and look out from the pilots.
Similarly leaving an airfield, was, before I started reading some comments here, relatively straight forward. Now I am not so sure.