(a) Non-techie mundane people have heard about the vast wave of horrible kiddie porn and grooming stalkers just waiting to kill your child. Why would they turn off the only thing protecting their loved ones from harm?[1]
(b) What should you do? Phone up the tech support line and tell them you (essentially) want to look at fisting porn? What if they recognise your voice? What if someone finds out that you want to look at all that dodge extreme porn sites?[1]
[1] I'm not saying this is accurate, just how some people think.