I knew a charity group many years ago that targeted this issue.
They noticed that aid charities would give modern motorcycles to rural medical workers that rapidly ended up in a non-working state.
So they gathered older motorbikes, more suitable and more repairable in the destination country, and spent time training the end users in maintenance and upkeep, and ongoing support.
Not an uncommon problem with charities working with foreign nations. They fail to capture the local populations because they think of these problems in a vacuum.
Person lacks reliable transportation -> give them some -> problem solved
There's another example - a charity provides treated mosquito nets for free to millions of families in Africa. Great!
People lack reliable mosquito protection -> give them treated nets -> problem solved!
But in reality it went like this:
People lack reliable mosquito protection -> give them treated nets -> many of these families are starving -> fine mesh nets are great at catching small fish -> all their food is now infected with insecticide, mosquitos continue to access the family as well
That was exactly the goal with the Buffalo Bicycle project, and I'd say it worked pretty well. Make a bike that's mechanically simple & reliable, maintainable with common tools, and train technicians to fix and upkeep them. Basically create the Toyota Landcruiser of bikes. I kind of want one, even though it's a "bad" bike by the standards of most western audiences (heavy, slow, ugly, etc)
They noticed that aid charities would give modern motorcycles to rural medical workers that rapidly ended up in a non-working state.
So they gathered older motorbikes, more suitable and more repairable in the destination country, and spent time training the end users in maintenance and upkeep, and ongoing support.