Censorship: Should certain material be restricted to select groups, or banned entirely from the Internet?

I chose the question, "should certain material be restricted to select groups, or banned entirely from the Internet?", because I feel that some age levels should not have all the access that they do for the Internet. I agree with the fact that things should be available but only to a certain age group and depending on the certain information that that person is looking for, should it or should it not be banned from the Internet entirely so children and teenagers do not get a hold of this to corrupt them in anyway. I also agree with the fact that children should have parental locks on their certain pages so they parents have the control until they are old enough to decide what they are allowed to search and discover.