8 years seems like a dubious number (Score 1)

How exactly was this average calculated? They obviously didn't average over the age everyone got their first phone. Otherwise adults would have skewed the number to be much higher. Did they only count kids under 18? I think that would have given them a number greater than 8 too. So what cutoff did they use, 10? That might give you 8 as an average.

None of my ten year son's friends have cell phones (to my knowledge). I have a hard time believing the average age is that much lower in the UK.