"Parents are going to ludicrous lengths to take the bumps out of life for their children. However, parental hyperconcern has the net effect of making kids more fragile; that may be why they're breaking down in record numbers."
As an observer of parenting skills, I do see a difference in the resilience and bounce back in kids that are allowed to explore the world and those that are shielded from it.
Kids will get cuts, scrapes, bruises. Kids will have to deal with bullying, hurt feelings and the normal feelings that come with growing up. Trying to shield them instead of allowing them to learn as they grow makes for teens and adults that have major issues.
Let your kids play. Let them explore. Let them learn as they grow. Keep an eye on them and be their guide. Don't shield them from the world because when you are gone, they won't have the coping mechanisms to make it through life.... and when they fail at life, you will be the primary culprit.
Psychology Today article.