Good to see some research looking at attitudes to and preferences for COVID mitigation among people with existing health conditions, which is nearly half the population in Australia. https://onlinelibrary.wiley.com/doi/10.1111/hex.70025

Having said that, though, I wonder if either the study is non-representative or a large percentage of people with comorbidities avoid leaving the house. Why? Because I’m often the only person wearing a mask when I’m out in public, no matter the venue. (And for me the risk of COVID exposure is less a concern than asthma and allergy triggers.)