Would you rather catholic schools ONLY accept practicing Catholics? That way they can't be blamed for teaching catholic ways to non believers... Yes?
I think that demanding that CATHOLIC schools do not teach aspects of Catholicism is bizarre.
Religion in catholic primary schools is interwoven into the normal lessons plus acknowledging special days ie ash Wednesday, Easter, Pentecost etc.
Religion in a catholic high school is a subject and explores into the history of the church, the important moments for Australian Catholics, the development of protestant churches etc. Yes there are aspects of classes that deal with scripture and bible study but there is a lot more as well.