By the way whoever wrote this has their facts wrongit was his 6 year old son. Second of all check this out:

Yes you and many others think this but read this section of an England arcticle  from The Times..... (quote by pro soccer manager)   
    "Anyone who calls David Beckham thick is an absolute fool,” Allardyce said. "You can’t produce what he has produced with his level of intelligence in football over the years, which is pure genius, like any other top, top player." 

    "Because academically he doesn’t sound the best, he’s deemed as thick. What a load of rubbish. The way someone like Beckham or Wayne Rooney can do what they do on the football pitch, when their brain can make incredible decisions in a , is genius.”