how? what can be done?
and goverment have to legal bitcoin
Yes that is going to be the use of bitcoin in poor countries. That's the main reason for them to become poor, because they don't have something for their living. But because of their poorness they need to identify first what are their needs so that they will be able to identify what's going to be the first move for their adoption of bitcoin.
But the problem would be the access to this gadgets and internet. If you are making rich people in a poor country richer, you are not helping the country to level up its status. The reason why country is poor is the percentage of the poor people that have no means of meeting the basic or standard way of living. This problem will only be solved if the government centralized its effort of implementing a project that give acces to the knowledge and equipment needed to facilitate or take advantage of bitcoin opportunity.
It's just a dream to make the world equal, for example you can pick all the money of the world and give $1000 to everyone
After a month or a year, one guy will have a million and other will have $1.
The real question isn't to make people rich, just give to everyone a better life. Most problem of the world comes from corrupted politics.