No matter how strong the bond is established between a baby and his parents, that kid will also be influenced by people outside of home. Not all caring parents' kids will turn out well-behaved and trusting because children will have different experiences and environment that will also play a major role in shaping who he is. Saying that people grew up with secure attachment will have well-being life style is like saying that there is only one factor that determines the kids' behavior and lifestyle. There are obviously more than one variable. unpredicted experiences or acquaintance with new people are certainly one of many variables that determine the course of life.
