There are plenty of parents who throw their kids out of the house when they get to be so stubborn they won't listen anymore. I'm so sick of hearing like this is some kind of JW thing.
The difference is,JW kids (minors) often get thrown out simply because they don't want to be JW's....don't want to get baptized or go to meetings, not because they are doing anything particularly wrong. I know a family that went to South America to serve where the need was great and their 17 year old didn't want to go. Without giving too much detail here I'll just tell you, their flight stopped in a southern state before leaving the U.S. They dumped their 17 year old off at the airport with no money no place to go and have never heard from their offspring again. They are now missionaries and the 17 year old is in their early 30's, has made a life of their own and wants no contact from family members....even the ones who are no longer JW's themselves.