About 5 years ago a young friend refused to get her 5 year old daughter a cell phone, but the child's grandparents gave her one without my friend's knowledge or agreement. So one day she took daughter to visit Grandparents and as she was picking her up, friend heard inlaws inside the house yelling at each other.
In the car she asked DD what was going on.
'Mommy, how much is three thousand? Grandpa doesn't want me to talk to anybody with a ONE in front of their numbers"
DD asked innocently.
Seems she had discovered long distance dialing and was having fun talking with strangers all over the nation, and that was one gabby little girl!! Loved talking. It's amazing how fast they are learning all this technical stuff!! Much faster than most of us older folks.