The happiest, most successful children have parents who do not do for them what they are capable of doing, or almost capable of doing; and their parents do not do things for them that satisfy their own needs rather than the needs of the child.

While doing things for your child unnecessarily or prematurely can reduce motivation and increase dependency, it is the inability to maintain parental boundaries that most damages child development. When we do things for our children out of our own needs rather than theirs, it forces them to circumvent the most critical task of childhood: to develop a robust sense of self.

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So how do parents find the courage to discard the malpractice of overparenting? It’s hard to swim upstream, to resist peer pressure. But we must remember that children thrive best in an environment that is reliable, available, consistent and noninterfering.

A loving parent is warm, willing to set limits and unwilling to breach a child’s psychological boundaries by invoking shame or guilt. Parents must acknowledge their own anxiety. Your job is to know your child well enough to make a good call about whether he can manage a particular situation. Will you stay up worrying? Probably, but the child’s job is to grow, yours is to control your anxiety so it doesn’t get in the way of his reasonable moves toward autonomy.

Parents also have to be clear about their own values. Children watch us closely. If you want your children to be able to stand up for their values, you have to do the same. If you believe that a summer spent reading, taking creek walks and playing is better than a specialized camp, then stick to your guns. Parents also have to make sure their own lives are fulfilling. There is no parent more vulnerable to the excesses of overparenting than an unhappy parent. One of the most important things we do for our children is to present them with a version of adult life that is appealing and worth striving for.

Madeline Levine for The New York Times Sunday Review