Why do foreign children have a toy to grow up with?

Foreign children have been sleeping alone in their own rooms and beds since infancy, so it is very important to accompany the dolls. Many children in China slept with their parents or grandparents when they were young. Whether it is a doll, a toy, or a baby's mother's big arm (my daughter likes it very much), it is a materialized projection of the baby's anxiety and pursuit of safety and comfort.

Toys can also be natural things, that is, sand, stones, dirt, branches and other non-artificial things. Toys should be understood broadly. They are not limited to things sold on the street for people to play with. Anything that can be played, seen, heard and touched can be called toys.