Mr. Michael Gubbins:

I agree with Professor Carthy up to a point. We could pass legislation requiring users to verify their age and identity, but as my colleagues and I find every day, there are false IDs, passports, and driving licences. People will figure out a way around giving their correct age. They will produce something that verifies an age and an identity but they will find a way around this if they want to. Verification will address situations where somebody loses their head and does something wrong. If that person has not hidden his or her identity, we will be able to pursue them. It will make a dent. However, anyone that is seriously intent on hiding their identity will figure out a way around it despite legislation and verification.