Regulating a decentralized thing? Impossible thing to happen.
They may not be able to regulate crypto currencies in their decentralized form, but they can regulate the ecosystem around it firmly, which is what they are doing. I expect regulations to become firmer with every increase and new utility use that takes place, and this process can literally take years. I am glad that most of the countries have completely different views on how they think they should deal with crypto and everything around it. I however do expect one measure to become somewhat of a globally enforced rule, and that's exchanges automatically submitting our activities to the local tax departments. It's only a matter of time....