Unless their is a dump point where you are camping how can you do that?
Or do some just dig a hole, in which case what is the point of the thing?
the point of them is.... the chemicals used break it all down, and certain family members prefer to use one over the old hole in the ground. I have no issue with the old hole in the ground myself, but sometimes people use items when camping that make other family members happy to come away with them.
So long as people use the bio degradable chemical instead of the old non bio degradable stuff or Nappi San etc, I don't see an issue with digging a hole and emptying it into (but only in a location nobody will ever camp in or be a walk way etc).
surely people don't take Shit with them on tour?
why would you empty something daily that is easily transported when on the move each day? A huge waste of chemicals and water to keep emptying daily. Our chemical dunny can last many days without needing emptying, we regularly transport it with partially filled with waste when touring around on the move daily (if we stay somewhere for extended days it gets emptied before leaving if possible). Granted our unit is stored in a side locker completely separated from everything else in our camper, but it's tied into position so it can't move and has never leaked.