Sure there are risks, and risks can be mitigated. So, why is this news? Where are parents in this? Pull the plug, or except and attempt to mitigate the risk.
This isn't so different from the rants that surrounded BoA's announcement of monthly fees for debit card use. If someone doesn't want to pay the fee, don't use the card. Use cash, or charge it, or don't buy.
BoA isn't forcing anyone to use the card, and no one is forcing kids to use the Internet, although, unfortunately, many are pushing pretty hard.