I still think the watt/light limit would be better than plant limit. It would cut down fro a need of plant counts and be safer for everyone (at least it can be justified as safer saying people cannot run 10000 watts in residential house who jerry rigged everything) There are always a couple people who make everyone else look bad so for me it makes more sense saying 1000 watt flowering per adult up to 3-4 adults, 400-600 for veg. For recreational that should produce quite a bit, but outdoor should be pushed as preferred method so that people would be more open and rippers would be less likely to steal if a lot of people are doing it. I can't see height restrictions making any sense, I have a hard time believing indoor many people wanting to do 10 foot trees, much less being capable of it in a regular house.
I agree completely but the optics suck the Conservatives would no doubt point out that you could grow hundreds if not thousands of plants under a thousand watt light.
Most people will not try growing once due to the time, cost and effort that goes into growing great cannabis. Those that do will need at least a thousand for the cost of the lighting and set up. Then also have the time to care for their plants each day. And when they finally get a crop they will have to learn how to trim and cure the bud. If they get everything right it will be as good as the bud they buy from the store but on a first grow what are the odds of getting everything right? Brewing wine or beer is much easier then growing cannabis but most people just buy theirs from the stores.
Outdoor will be the easiest way of getting started, the biggest concern will be the neighborhood kids and their nose for pot.