Safety By Age
10 to about 12:
During this pre-teen period, many kids want to experience even more independence. If children aren't already doing so, this is a time when they should start using the Internet to help with schoolwork and, perhaps, discover resources for their hobbies, sports activities, and other interests. This is also an age when you have to be concerned not just about what kids see and do on the Internet, but how long they are online. Your job is to help them manage their independence. Set limits on how often and how long kids can be online, and be sure that they are engaged in other activities such as sports, music, and book-reading.
At about age 12 children begin to hone their abstract reasoning skills. With these enhanced skills, they begin to form more of their own values and begin to take on the values of their peers. Before that they're more likely to reflect the values of their parents. It's important at this age to begin to emphasize the concept of credibility. Kids need to understand that not everything they see on the Internet is true or valuable, just as not all advice they get from their peers is valuable. A good way to illustrate this is for them to do a search for sites on subjects they know a lot about -- favorite athletes or musicians, subjects they love in school, etc.