A tailor-made token for a specific use case never makes sense. It goes against the fundamental idea of money. People don't want to have accept payment in things they can't use elsewhere. It's a limitation, not a feature.
To trade in one currency and settle in another requires a liquid market for CVC to other currencies. Who do you think is going to provide that liquidity? Probably someone earning on the spread = hidden fees. For the users, this is the opposite of an optimal economy.
