European countries have managed to do this for years so the level of bureaucratic incompetence must be exceptionally high here.
Edit: Sorry, confusing reply. I was responding to the criticism about differing rates of GST for different food items.
You seem to imply that the Europeans can do it well, so why can't we.
Some European countries do indeed have different rates of their GST equivalent. However, it's a bit of a mess and hugely benefits the lawyers. If you have a spare moment, look up VAT on Cornish Pasties. Or the endless McVitie's legal action over whether their jaffa cakes are cakes or biscuits.Or the court cases over how much potato content Pringles have, which changes their tax status.
Having one rate, with a broad base, and few exemptions is one thing that Treasury and the Lange Government got right.
If GST was exempt on fresh veggies and fruit and meat, and many dairy thats simple. It needs to be kept simple.