I'm 33 with a 9 year old girl that wrestles (and majority of the time can beat her brother), and a 8 year old son (this is his 4th year wrestling). We let them make a choice of what they want to do. Our rule is that they cannot do two sports at the same time. Example, my son is missing baseball this year so he can do some freestyle and football. My daughter wrestles the girls tournaments, and the girls season has just started. I say let them make the choice.
