The culture of Nigeria is shaped by Nigeria’s multiple ethnic groups. The country has over 50 languages and over 250 dialects and ethnic groups. The three largest ethnic groups are the Hausa-Fulani who are predominant in the north, the Igbo who are predominant in the southeast, and the Yoruba who are predominant in the southwest.
According to old customs, women did not have much say in whom they married- and they still don't in some places. That's one good thing about a compound(many wives): support is built in, whereas in modern Western society some people spend quite a lot of money finding "support groups".