Just for the record :-) My son was supposed to play tball this year and has been successfully accelerated to Minor A level! We've heard the sports argument before but when he wanted to try out and play up, we let him do it! He is the only 6 year old on a team of 7-9 year olds... and he holds his own just fine. Who knows when growth spurts and puberty will take hold. Right now he's still 99th% for height. With an uncle at 6 ft. 7 inches, a grandfather at 6 ft 4 and a mom at 5 ft 9 (I'm the shortest girl in my family!) I think he'll be okay.