Difficult, if a country has a weak economy, there will be little cash around to buy BTC to begin with. You may also consider that a poor country will have poor infrastructures, I mean poor phone networks, and slow Wi-Fi.
I strongly agree with this, certainly in a weak economic country will be difficult to find the required infrastructure.
And other things, how do they start with a less economy, whereas what we know BTC prices are already soaring up? Will they have enough capital?