Money supply regulation is not a problem that needs a solution. Any reasonable choice for the debasement rate works equivalently well, because the overriding impact on supply and price is the velocity of money and the demand for the coin.

Distribution of minting is a scaling issue, because it is not easy for individuals to trade fiat for crypto-currencies. Paypal I think is planning to make it easier for mainstream to acquire BTC, but the overriding problem remains that most people don't have a reason to obtain it.

Transactional demand for usage of the coin is primarily what addresses scaling. Because this also has the Butterfly effect that the more demand, the more people spending, the more people who earn it to spend it, etc..