When Richard Branson was a young boy, he refused to talk to adults and would cling to the back of his mom Eve’s skirt. When he turned 7 or so, Eve decided that his behavior was no longer tolerable. On the way home from a shopping trip to a nearby village, Eve stopped the car about 3 miles from home and let Richard out. “You will now walk home. You will have to talk to people to find your way home,” she told him. By the time Richard arrived some 10 hours later, Eve was apoplectic. (She had not accounted for the time he might stop to look at bugs and inspect rocks.) But it worked. Richard started to become more comfortable interacting with adults.
I read this in the following article in Time Magazine. You must read it.