Another thing I could never get about the portrayal of Anakin in the PT is his accent.
Luke has basically the same accent as Beru and Owen.
Anakin sounds nothing like his mother or Watto.
He hangs around the other slave children but he is a slave so we are led to assume he has less contact with them than most school children have with their peers.
When he grows up he is around Obi-Wan most of the time and still has that accent.
When his mask comes off he sounds like Obi-Wan.