Just trying to send ordinary sums (say $1000) to someone in Venezuela, or Nigeria, or even India or China can be very tricky. Not everyone has PayPal. Even if they do, it may be subject to all sorts of capital controls or taxes that we do not see in most Western countries. It can often be either impractical or extortionate through the traditional financial system.
I have many reservations about Bitcoin, but if I just needed to send some money to someone in a developing country, it's pretty high up there on practical and simple ways to do so, if they can deal with the BTC on their end. Canada is quite free financially. I can send cash pretty much wherever, with no legal concerns if it's not funding crime and any investment returns are taxed. The legality on their end is another question, as this article shows.
I would‘ve thought it’s prudent to keep interest low in such a scenario, because it stimulates investments.
Raising interest rates when inflation is high is Central Banking 101