Do waiting staff at fine dine restaurants expect to receive tips?

Went fancy fine dining with the wife recently. The waitress was lovely, considerate and provided a good service for us. When we got the bill and the eftpos machine to pay, there was an option for gratuities/tipping. I pressed $0, because, well this is Australia and I have never needed to tip before. The waitress didn’t seem upset or annoyed by it, but after leaving I had the thought of, maybe we should have tipped? Was she expecting us to tip? Should we have tipped? If we did tip, would it have gone to her or would have it gone to a waiting staff pool?