Every day we are not aware of the importance of play, because we are playing by inadvertently creating a new discoveries. for example, make houses of sand, accidentally we learn to design a form of house and whatever the results we create is a picture of the process we learn to make and planning design involuntarily. from there we know that playing a useful little can cause a new invention like these. so we should never prohibit a family member or anyone to play the game when it brings advantages. so, hopefully useful, and become motivated you in any conduct or performance of any activity. good luck!