First, communication problems:
People with higher education and people with lower education look at problems from different angles and handle things in different ways. So when communicating, two people often disagree.
A friend of mine graduated from junior college and his wife graduated from technical secondary school. The educational background gap between the two people is not very big, but when it comes to buying a house, the problem will be big. The husband advocates the minimum down payment and the longest loan time. The rest of the money can be reinvested if there is a good direction. But the wife hopes that the house can pay more, so that the burden at home will be less in the future. Although the husband explained a lot to his wife, they didn't reach an agreement in the end, and finally they didn't buy a house.
Second, children's education:
After having children, the most likely contradiction is the child's education. Still the friend I mentioned above, after the children go to primary school, my husband hopes that the children can have more relations with their studies. My wife thinks that her education is low, and English and Olympics can't help. So two people often have conflicts.
Although there may be some problems because of the big educational background gap, I have also seen families with big educational background gap still live well. There are also people with similar family education, but the problem is big. However, families with large educational background gaps must forget the educational background gap between two people if they want to live a happy life. When encountering problems, both husband and wife sit down calmly, and equal communication is the most important.