The infrastructure for accepting Bitcoins is all there, it doesn't matter which country you're in you should be able to sign up to the crypto only payment processors like coinpayments, it's all up to them now. I do think that we need to seriously take a look at some open source SCI's though.
the only thing could be regulation, some countries don't even know how to define bitcoin, let alone adopting it
security and regualtion is what holding back many countries from accepting bitcoin and Greece is not exempt from this, with their trouble don not have the tiem for this i presume