The educated will leave or send their kids out of the country. Then there are more and more people coming into the city. A once predominantly rural population is becoming an urban one. But the urban population faces problems as well, particularly when it comes to infrastructure. There is no water.
Electricity is haphazard at best.
There are no standards. For example, Luanda was built for 300,000 people. There are 3 million people living there. So you have high unemployment, no work, no family, no structure. The people all come out of the area where the fighting is, for security.