These norms are called Display Rules. These rules are social rules that inform about when, where and how a person can express their emotions. They are told to be rules that are supposed to be explained to every individual as he is growing. This is expressed by the way people interact and socialize with other people.
South Africa's economical system is one of the most developed in the continent. ( in fact, the second after Namibia). The country had an amazing grow after 1994 and is trying to leave apartheid behind. Inflation was controlled, opportunities were equal, foreign capital was attracted.
As for trade partners, South Africa does businesses with Germany, China, Japan, the United States and Spain.
Over 45% of the electricity of Africa is generated in South Africa and an important sector is tourism. Cape Town is ranked as the first world destination.
However, unemployment rate is high ( more than 25%)
As far as literacy rate, in 2015, it was over 94%.
It would take 10 percent of votes for a state to rejoin the Union
One of the reasons was because Makkah (the holy place of pilgrimage for Muslims) was also connected to many global trade routes.