> "but the risk of pedophiles on the Internet is waaaay overblown"

You are correct that a child's caretaker is often the culprit.

However, you are dead wrong on Internet pedophiles being overblown. It's quite the opposite. Post a Craigslist or Backpage ad saying you're a 12 year old who wants to meet a mature older man to have sex, and watch the replies pile in from every direction. Or, enter any chat room saying you're a teenage girl and count the seconds until an adult male begins flirting. Or, see how many friend requests and direct messages underage girls get from adult strangers on Facebook.

There's a reason why convicted sex offenders in the US are not allowed to have access to a computer (yes, law enforcement searches their home twice monthly).