Yes they're going to clamp down on all the fiat channels in the name of consumer protection. They'll try to stop us from buying Bitcoin for our own good. Adoption is going to happen first in nations where the people benefit the least from the legacy financial system, and where corruption is rampant. Look to Latin America and Africa. For those of us living in North America and Western Europe, our governments will try to cut us off from the Bitcoin economy. They can try to stop us from buying more with our fiat, but they can't stop us from using what we already have. They also can go after large scale mining operations, but they can't go after the average anon running a couple of ASICs in his home.