Look, jamfisha, uk laws don't matter one whit on the internet. What's to stop me logging onto French or German sites? or Guatemalan for that matter? (I do.)
If you want guidelines to protect children. Here is guideline No. 1: Never leave a child near an unguarded, dangerous entity. In other words don't let your child drive, play with fire, or surf the web alone. Otherwise type Netnanny into Google.