Is It Okay for Kids to Use TMI?

Yes, this is the normal slang and can be used by anyone of the person even if they are a small child. But parents should know that their children talk appropriately with others. The parents should also use the call recording feature to admit the mistakes made by the children when they talk to others. By TMI slang, you can stop the other person or a friend if they share too much information with you and that is not appropriate for you.