His reasons for the Karate seem perfectly acceptable to me, as long as his kids enjoy the activity. At that age, the activities kids participate in are almost

His reasons for the Karate seem perfectly acceptable to me, as long as his kids enjoy the activity. At that age, the activities kids participate in are almost totally driven by parental influence. He's making choices that are guided by the lessons in his own life. How could he act differently? Would you object if he made a point to teach his kids how to be social and interact positively with others just because he learned the lesson the hard way? The anger, though, he should release if possible. If not, however, it seems pretty clear that he'll be able to go back to just avoiding the stimuli for another five or ten years.