If you have children of your own and you dream about them, which is very common, it is usually simple parental caring and worrying that is the root of your dream.
If you dream about having children of your own when you don’t have any in waking life, it can be a sign that you wish you had children, that you want children sometime in the future, perhaps soon?
Dreaming about children is also thought to signify happiness and joyfulness, or a desire to have those things in your life.
Children in dreams can also reflect feelings and emotions from your own childhood, so try and think about what the children in your dream were doing and see if you can figure out a connection between that and your own experiences as a child?