DS (age 9) appears to be a pessimist. Every day when he comes out of school I ask him how it was - and every day he comes up with an example of something that happened that was bad. Even after football training (which he loves) the first thing he will talk about is who hacked him or why he fell over or missed a shot.
Even if something positive happens, he seems to put a negative spin on it. E.g. yesterday the teacher told the class that the 6 pupils with the best drawings would get a sweet. They all worked hard on their drawings and she said that they were so good that everyone in the class would get a sweet. He was complaining that she shouldn't have done that (even though he is rubbish at drawing and wouldn't have got a sweet if she hadn't!)
He just seems to be always moaning and complaining!
Is it common for kids to be pessimistic? Is it possible to change his thinking so that he is more positive? Any tips or strategies appreciated.