Anyway, the frustrating issue is that advice seems to be risk based mixed with environmental conditions. Which seems sensible, but I actually think it's not the correct approach.
So right now we have a bloom of Delta in Sydney, and our medical advice was previously not recommending AZ because of the chance of blood clots. However now the situation is really quickly getting out of hand and they are recommending AZ.
It strongly seems like they considered Australia being some island all on it's own some massive mitigating factor which changed the impact of the virus. And as a consequence a lot of people are without any vaccine and a lot of hesitancy about AZ. The failure here was they thought they had time to wait for pfizer.
But Delta acts like Delta and is just spreading around like wildfire. I actually believe some of the advice is suffering from normalization of deviance. Where the deviance is being able to suppress the virus with things like quarantine. As opposed to getting everyone vaccinated.
Oh btw, I'm under 40 and got AZ because I'm willing to risk it. I've never been struck by lighting and i've done way riskier things.