What country do you live in?
If I were you I would see this as an incredible entrepreneurial opportunity, your English is good and you are posting on bitcointalk. That shows promise.
I live in the USA and I know I would have a tough time pitching bitcoin or other crypto's to people vs the USD, especially to baby boomers who have all their savings/investments in traditional assets.
For you though it probably is not the case, in my opinion you could have a legit business just preaching/teaching bitcoin basics.
In addition, in these countries people have very few aspirations and do not seem interested in matters related to technology.
They may not be interested in the tech, just show them that if they put their native currency into bitcoin or other cryptos how well it would have done in the past 5 years vs. their native currency!
The only barrier I think would be how they would spent it? Maybe there are some fiat gateways in your country that would allow them to?
Venezuela is a great example right now btw.