How does having kids sit quietly "teach" them anything: especially something complex like how to act appropriately in different situations? Kids learn how to act appropriately in situations with guidance and feedback from adults. 

The more abstract a particular practice is, the more likely it is to be adopted by the schools. It offers false hope to peoples preexisting beliefs. People in Eugene (especially South Eugene) like to meditate and do yoga, so this kind of proposal will go a long way here.