A.M.
I cannot brag about USA Martial Arts enough! They are so great with kids. My son loves going and loves both the instructors at their Plano location - Spring Creek/Coit.
There is an Allen location, too, but we haven't gone there.
I highly recommend trying out a class to see how it goes. Martial Arts is so great, and my husband and I are so happy that we decided to enroll him in this. He's learning so many life lessons, disciplines -- in addition to great exercise and self-defense moves, coordination. And their reward system is wonderful --- my son has been helping more with chores and being mindful of cleaning up after himself -- since he earns a stripe on his belt when he does good at home and school.