Lack of preparation
Lack of preparation This reason for a divorce is not indigenous for Nigeria: it happens everywhere all around the globe. Young people think that they are prepared for everything when their bodies reach physical maturity but their minds are still infantile. This is why they often tend to get married by impulse, being totally unprepared. The lack of emotional, psychological, and even intellectual preparation before getting married is one of the most common reasons why marriages fail. No understanding of the obligations, responsibility, care, and communication causes a complete mismatch.
Lack of courtship
Quite often, young people don’t give themselves enough time to get to know each other better before getting married. They simply meet, feel the attraction, and decide that they are in love. Without the period of dating and courting, they have no chance of getting to know the characters, habits, and life views of each other. The courting time allows young sweethearts to find out whether they are truly in love, whether their tempers match each other, and also what the HIV status of the partner is, whether he or she is fertile or sterile, and so on. All these things can be vital for a marriage.
Lack of compatibility
The physical draw is often treated as love, and it’s one of the biggest mistakes young spouses tend to make. They discover that their natures, intellects, emotions, and habits are incompatible only when they are already married, the time of the first passion is over, and the reality dawns on them. Incompatibility is one of the reasons couples divorce after decades of marriage.

You have good points, but money is one of them ooooo. Lack of financial stability or sustenance.