This probably isn't the worst thing the society has done but it has to be up there, and is so widespread....
The wasting of young people's lives by encouraging them to pioneer (i.e., drive around in cars all day wasting precious time, money, and gasoline, etc.) and not get an education or a job that they can support themselves at and to serve at Bethel as slave laborers and pay them absolutely nothing. Also, encouraging young ones to marry before they even know who they are or what they want to do with their lives.