The second is the concept of having more children and being happy. Today, we advocate late marriage and childbearing, and fewer children. The ancients paid attention to many children and many blessings. The earlier you get married, the earlier you have children.
Third, ancient times was an agricultural society. This family has little leisure time, and the children are long-term investments. For several years after birth, they can't eat anything. If they get married early, they will be independent as soon as possible, and they don't have to hold their parents back. Like now, there will be a similar concept, especially in rural areas, that is, both men and women get married and have children very early.
Fourth, some ancient governments stipulated that women should get married when they reached a certain age. This is mandatory. If they don't obey, they will be punished, for example, family members must sit together in a dungeon. Moreover, the age of this provision is much younger than the legal age in modern times, and the current provisions are still in line with the basic national conditions.
Fifth, ancient wars were basically wars, and at that time they were all cold weapons. Wars are basically piled up by a large number of people, and continuous wars need a large number of people to make up for them. Unlike us now, we are in a peaceful time and a peaceful country, so we don't have to worry about war.
Sixth, the arrival of adolescence, similar to the estrus of animals, is also an instinctive reaction of human body, and development always goes through this step. At this time, the youthful desire of boys and girls is normal, but in ancient times, it was natural to think that you could get married and have children at this time.