Help, newbie here! I am looking for a good martial arts studio for my six-year-old daughter in the East Bay, California. Not sure what constitutes good martial arts instruction for kids, but instructors have to love kids and be knowledgeable about how to deal with young kids and studio has to be kid-friendly, but at the same time, teach the kids discipline, self-confidence and the art itself. Any suggestions? Specifically, Castro Valley, Hayward, Union City, Pleasanton/Dublin, San Leandro area. There are many listed in our phone book, but, short of visiting each and every one and watching dozens of classes, I don't know which of them are good. Thank you for your help!