There are already strains that have low(er) odor while growing (https://www.royalqueenseeds.com/blog-top-5-low-odour-cannabis-strains-to-keep-stench-under-contr

There are already strains that have low(er) odor while growing (https://www.royalqueenseeds.com/blog-top-5-low-odour-cannabis-strains-to-keep-stench-under-control-n868 https://www.royalqueenseeds.com/blog-top-5-low-odour-cannabi...). But most people that smoke pot enjoy the unique smell of marijuana. There are ways around the smell being an issue. Growing indoors, it is quite easy to filter out the smell with activated charcoal filtration, which is how it was done when it was illegal and smelling up your block was a nice way to get caught. The problem is arising from outdoor grows and greenhouse grows which don't treat the smell and can't really in a cost-effective way since they would need to filter all of the air.