Stern advice for Sydneysiders planning Christmas gatherings

Masks or no masks. Have you noticed how the media influences public behaviour? When reported cases are up, more people wear masks in public. When reported cases are down, the masks disappear. Does this really mean we’re just being reactive rather than proactive (ie, by the time we wear masks it’s actually too late)?
NSW authorities are pleading with residents to wear masks and follow simple steps to stop the spread of COVID this Christmas.