What are u talking about? Gambling is one of the biggest industry where bitcoin finds its adoption.
They gamble trading on the exchanges. There are no Chinese Bitcoin gambling sites. No doubt Chinese folks go to foreign gambling sites.
Morelike what has gambling to do with Bitcoin adoption in any country ? Not like majority of people like to double their money playing risky games.Also its not a fact ,people who loved to gamble ,gamble either way ,with bitcoins or without bitcoins,bitcoins just made a easy way out.