Facebook has an age limit. It's 13. In theory, nobody under the age of 13 should be able to have an account, and yet there are millions of primary school kids using the website, being exposed to pages promoting hate speech, illegal activities, anorexia as a glamorous lifestyle etc etc etc as well as the risk of coming into contact with predators.
Parents try and stop their kids from signing up, but they use friends computers, mobile phones and other 'net connected devices to go against their parents wishes.
Is it unreasonable to expect Facebook to put in place some measure of age verification to ensure that under 13's don't get to use their site? Should they be forced to do so?