Many highly verbal students do well within a school routine but have extreme difficulties in unpredictable community settings. If a student is not allowed to participate, that student is missing out on a learning experience. Participation in CBI should be based on behavior while in the community not dependent on behavior in school or at home.
Generalization is very difficult.
Community-Based Instruction . . . Probably survival trumps both, as tribes of all regions and individuals of all species are methodically hunted down and caged or killed if they won't be tamed. They can see through the material and can stretch and push at it. For the children who don't like their heads covered, they can keep their heads outside. We just got it today and it was an instant hit with three out of our four preschoolers.