now so many gambling site using bitcoin. anonymous and very easy for deposit and withdrawal. after using bitcoin i never gambling with real money.
everyone will do like that, when they will bet with bitcoin they will love in that way and will then do not use fiat for gambling, so it is right that in the future all of the gambling sites will use bitcoin or their altcoins.
I think there are still much more people that gamble using fiat out there. May be if bitcoin doing some promotion out there I guess it will be sure bitcoin will be gambling future currency but for now I dont reslly think bitcoin have really much affect on reality