An apple doesn't roll far away from the appletree.... Yet parents believe their children are not able to do anything bad, but they do!!! When they become one of the crowd.
I can't give the answer, why it happens, but I have some guesses. I am for progress, but it frightens me when I hear endless talks about children rights... Absolutely right, children have to have their rights and they have to know them, but unfortunately, people tend to overestimate everything. As the result, children are perfect in knowing their rights, and they totally don't know about their duties. The result is what it is- I am a child, I can do whatever I want, and nobody can punish me, hands off me, I know my rights!!!!!
"To know nothing is bad, to learn nothing is worse."