I was wondering what the most suitable age for children to start playing tennis is? I know some players (Aggasi, Connors) started very early, like 2 or 3, I read recently that 6 or 7 would be better because at that time they have a longer attention span, and would actually listen to what you tell them to do. Also, depending on the age of course, which one of the Junior racquets would you recmommend. I noticed that Wilson and Head have a pretty large selection for children. Thank you.