The content originally appeared on: CNN The RG420 cannabis cafe opened just four days ago in Khao San, an area of Bangkok popular with backpackers - and already it's crammed with customers. Several such outlets have sprung up across the capital since Thailand decriminalized the plant in June, a few weeks before it dropped COVID-linked controls on foreign visitors. Foreign arrivals shrank to 2 million in the first half of 2022 from nearly 40 million in 2019, and RG420's owner […]