They should not be allowed to use computers because it could hurt their parents and could them in the future. For example, what if you want be a police man because you liked what they do. So you go and sign up for the job. They look at your background and it is all good but then they look at your social media apps and accounts and they see that you posted inappropriate stuff and they say sorry but you can not have the job because of the stuff you posted. Since you posted that stuff early when you were a children, it affected you later on in life when you wanted to get a job. Another example is you posted stuff about you, your parents, and information about your house(example address). People(stealers and killers) will use that information to find you/ your house/your parents and could steal them, you, your stuff in your house, or kill you or your parents. So do not post anything stuff or personal stuff because it can hurt you or your parents.