Why do people think kids are so badly behaved?

I do believe that the upcoming generation of children are very badly behaved. The new era of parenting, disciplining, and school systems are turning children into spoiled, candy-ed brats. I am 19 and my brother is 11, and he is extremely badly behaved and treats everyone like dirt. I (and this isn't my opinion, my parents agree) was much better behaved because I was punished for misbehaving, and they seem to let my brother slide for everything. I notice this sort of trend with almost all children today. If I had said that to my father, he would probably still be beating me to this day.