Hand writing

My son's hand writing is very poor. My hand writing was always very bad, so far can my son go. But if he write with little concentration he writes well. But his only concentration is on playing. So, he tries to complete his writing as soon as possible to make more time for play. And the result is poor hand writing. Now because of his poor hand writing his teachers are not giving him marks. They said, he has to write properly to get marks. My poor son...  :(