I've recently completed consent for my DCs to have their annual flu spray.
DS1 is invited to have the Covid vaccine due to being autistic. I decline. Autism covers a huge range of development and health outcomes. As a healthy teenager in better than average health compared to his NT peers, at a personal level I don't see an elevated health risk to him at a personal level. The system generating the invitation letters does not know DS at a personal level to know the difference between a typical teenager and one whose developmental needs significantly affects their physical health.
DS2 is asthmatic and not invited to date. His asthma is usually well controlled although has escalated after illness. I know of twice that he's tested positive for Covid, but he hasn't actually been ill with it. If he struggled more with the impacts of respiritory illness, then I might be more persuadable of the benefits to him.
My trust in Covid vaccines has never really recovered from the early days when the discussion about them was so toxic. There were vaccine injuries, and like so many aspects of the Covid response, it became impossible to have reasonable discussion about negative impacts alongside the benefits.
I did have the standard doses in 2021, and ended up more ill from the vaccines than the twice I've had the actual illness. I know someone whose immune response shortly after their vaccine ended up atacking their nervous system and ended up in ICU for 3 months, off work for over a year and has had to relearn basic functions such as walking again. That is a highly unusual effect but it is associated with vaccine injury, and his syndrome was more prevelant than usual in 2021. I don't expect another 1:1,000,000 reaction, but it still doesn't fill me with confidence either.
At a population level, the vaccines had a use in 2021 of a generally lower risk of exposing the population's immune system to Covid, but with our family's state of health and risk factors, the risk of serious illness is low, and our immune systems have coped with the illness. Therefore the benefit to us is on the lower side.
I'm not saying never. If the state of the DC's health changes, I'm happy to reassess. The DCs are also at an age where their opinion matters.
There's risk to every decision. We take risks constantly because we're confident that the benefits of the action (or inaction) outweigh their risk. Neither having the vaccine nor having the illness is risk-free. For many people invited, their risk/ benefit profile is far more clear. It's also not a vaccine that dramatically cuts the chance of illness, just potentially the risk of more serious illness.
The flu vaccine I feel differently about as it's been established for many more years and hasn't made us more ill than the illness it protects us from. We haven't had negative experiences of it to change our habits of accepting it.