Yeah, using the wild west as an illustration of how great it would be with no rules falls pretty short. We had sheriffs with monarch like powers, judges who played god, vigilantes, gun confiscation, criminal factions posing as peacekeepers, rampant criminality, genocide, oppression, and pretty much every hallmark of societal failure.
In terms of cannabis, we actually need some governmental involvement. This will never happen unless things change at a federal level. The plant has over a hundred distinct chemical compounds that affect the human body. The human body changes these compounds into metabolites that may react, interact, and impact in even more diverse ways. Each plant being a unique entity on a genetic basis, and having different cannabinoid profiles, further compounds the problem. There is no standard dose, or standard profile. Beyond genetic uniqueness, trichome development plays a further role in a variable product.
Sure, you can grow a plant, of a supposed strain, and harvest it, sample it, and then determine personal dosage, and desired chemical profile, but it would be much better for the masses to have some sort of lab tested and rated comparability. What would be really nice, is for Gurney's to carry weed, from a huge clone bank, like apple tress, cloning is the only way to ensure consistency, so that people could know exactly what they were getting, and to take that a step further, specific extracts, beyond the CBD that is sold now (which may or may not be CBD or in a high enough dosage to deliver any results). Extracts could be administered in edible form, much more consistently, pleasantly, and without all the smoking and coughing. But to do those kinds of things, you need real research, and real working regulations, and authorities trying to help consumers and suppliers, none of these are real realities at this point.
Right now, we have hippies, cancer patients, people with health problems and chronic pain getting inconsistent results, because of a few neanderthal lawmen with a Nancy Reagan poster over their bed. If the big pharma oligarchy finally relents, the law dogs will be shushed, but then they will own a branded product to replace the failed experiments that they have been selling to the general public to meet some of the needs that can be better served by a simple plant. There is not a great path forward involving anything resembling freedom, so maybe it is best left in the psuedo-science of hippy gardeners.