They focus on pulling and pushing toys as well as buttons and dials on appliances. This sort of play helps them figure out the world and how it works. As children age into preschoolers they become much more interested in their peers so they begin to play in a totally different way. They prefer to be with other children and learn social skills by playing with other children. Again, parental contact continues to be important for a preschooler's development.
Children learn how to appropriately play with others from their parents.
Then they test their new knowledge out with other children. Toys for infants are not very important, but they become more important as children grow. Toys are educational. But sometimes families get so busy that they substitute buying toys instead of playing with their children. Once children start school, parents still need to be involved in play, but it becomes more important to give their children the freedom to become more socially interactive with peers.