No one is looking after them. It can be said that most of the old people nowadays don't want to look after their children. They all hope that they can enjoy their retirement and have their own lives. So I gave up my career for a year and brought up a child myself. Then the child went to the nursery with all kinds of grievances and went to school at an early age. The main reason why I don't want to have twin children is that it's very wronged that the children are left unattended. Even though I know it very well, it is safest for children to take it with their mothers before they are three years old. However, in desperation, the child went to early education at the age of one and a half.
Economic pressure: Raising children is no longer an era of how to live. Children's education is very expensive, and food and clothing are also expensive.
Even if you choose the lowest equipment, the child's expenses will be about 2000 a month. If it is a twin child, the cost of the child is about 4000, plus the tuition fee of 7000. How many families can afford such expenses? So, I don't want to have twins.