There's no sugarcoating it: It's likely your kid will come across porn online, even through completely innocent searches. In all honesty, haven't you come across adult content when searching for something unrelated?  I once looked up Girl Scout cookies under Google images and stumbled across some different "cookies" I wasn't looking for if you know what I mean? Parents may find themselves confronting this issue much sooner than imagined, with kids who may not even understand exactly what sex is yet. 

If younger kids are frequent Internet users...

It's a good idea to implement some of the following prevention tactics to reduce the chances they'll be exposed to inappropriate images or video. 

• Put computers in common areas of the home (not in bedrooms)
• Use software and parental controls to make devices safer
• To prevent accidental exposure, consider configuring your search engine for “Safe search.”...