It may mean being rude to adults, making someone angry with you or breaking a confidence. There are several filtering software products that provide some level of protection from pornography. The problem with software is that it isn't perfect, a tech-savvy youth can find a way to disable it if they really want to, and it doesn't protect against all the safety threats. Many commercial sites are marketing to children and youth, and their sites provide free information, gifts and tips to them while subtly encouraging them to use their products. Many youth are not sophisticated enough information users to protect themselves against these marketing ploys.
Hate sites are increasingly prevalent, and increasingly sophisticated.
Again, youth may only see a well-designed site with relevant information, and not question the accuracy. The most effective learning environments meld traditional approaches and new approaches to facilitate learning of relevant content while addressing individual styles.