I was at Adelaide Oval and they required everybody attending to wear a mask if they were not seated in their seats. If you were walking around the stadium or purchasing food or drink you were required to wear a mask. You were not able purchase food or drink if you were not wearing a mask. You were directed to wear your mask or wear it properly by every attendant or police officer around the ground.
In fact every establishment that I entered whilst in Adelaide whether it be a store or food establishment were very strict on no sign in no service.
Unfortunately this is not the case in Victoria and I would be more confident of a handling of an outbreak if I was living in SA than I do living in Victoria. This is not a political statement as SA is a Labor government and it would not matter if it were the Liberals in charge in Victoria based on some of the statements made from them during lockdown last year. We seem to be the only state that can't get it's [censored] together in handling this pandemic.