Wait till you actually see some wiring here. Except countertops, there are no 120v 20A circuits in houses whatsoever. Blue NM exists for AFCI circuits, but is not mandatory. Houses can be done with plastic boxes, but most people still use metal. We do not bond switches. Lastly, and this seems to be the one that American sparkies "love" the most - the CEC has no rules on panel orientation and you could put one diagonal if you felt like it.Ugh. Just when I think I start to understand Canada.
You guys are so weird with your Loomex and 347v boxes.