This is a never-ending loop as lifestyle creates the altruistic self and therefore altruism affects a person's outlook on his lifestyle, which tells him to continue it. In Turkle's case, the kids have to sacrifice some of their time to spend it with their Tamagatchi and Furbies. Thanks to the Tamagatchis and Furbies' encouraging attitude towards children, they are more than happy to spend their time with them.