They need to 'do it' and 'see it' in order to learn. It's difficult to make kids understand they have to study to learn this game. Kids aren't afraid to make mistakes. Kids like their cards to be secret. Kids don't like to play their high cards if they are in danger of losing them.
Kids find it easier to write in textbooks to do the exercises.
Teachers need to set up contests for each lesson to satisfy this need. At the high school and middle school levels, it is best to go through the local school board to obtain a list of school principals. The individual principals will refer you to interested teachers. To run a program in a school, it is necessary to have a faculty sponsor. The personality of the sponsoring teacher is important in getting the bridge program started.