Karate Classes Houston We offer training classes for children ranging from 5yrs and up, we also have an adult class as well. Karate instills confidence, discipline, and is a good means of self-defense. in Public bookmarkswith houston_karate_classeskarate_classes_houstonkarate_in_houston Note: We offer training classes for children ranging from 5yrs and up, we also have an adult class as well. Karate instills confidence, discipline, and is a good means of self-defense.