A bit like an old car ,more likely to break down than a new one.
I think we are lucky we even have a vaccine, it is time to find out if like my daughter in law you have low platelets, then you can make an informed decision .
At 77 I am happy to be vaccinated, regardless of which one ,some protection is better than no protection.
It is a pity the PM wanted to save money on vaccine when his mates had no trouble giving themselves $80mill for rain water.