An additional shame is what karate has become in the United States in the 21st century-an activity for children that they get bored with by age 10.http://www.tandpmartialarts.com/
When they are older and could benefit from it as a lifetime activity for health and self defense they don't think of it. It's become a kids activity.
Sensei as magician at birthday reeks of creepiness. Jail time should be in order.