What is something you believed was true when you were younger that you don't believe now?

I used to believe that people were 100% good. I also used to believe that we could eliminate hate, violence, and world hunger. Then, reality set in, and I no longer believe these things. I do believe that the old school/traditional ways are better than today's. Keep your inner sense of wonder, and protect it, so it will not die like mine did. Sending you peace!