I can see the headlines now: 'Bitcoin funds al qaeda'
I agree. Unfortunately it would do more harm than good to push Bitcoin in Afghan right now. The government is in talks with the Taliban who may soon be power-sharing.
Sub Saharan Africa and small independent States are better options if you are trying to encourage Bitcoin use as a major part of a country's economy.
The US government would probably love it to be able to publicly tie BTC and cryptos with funding Al Qaeda. That would give them so much smear campaign potential that it isn't even funny...