What Will Happen if the U.S. Legalizes Pot Like Canada? A Mind-Boggling Economic Boon, That’s What. Posted by October 29, 2018 Leave a comment on What Will Happen if the U.S. Legalizes Pot Like Canada? A Mind-Boggling Economic Boon, That’s What. The U.S. population is nearly ten times larger than Canada. The economic benefits of legalization here would be at least that much greater.