I have a LOT of vaccines in me. Between the military and my international travels have a substantial vaccination record.
However, when these vaccines came out, I asked a simple question. How many mRNA vaccines have been approved for humans?
The answer - none. First introduced in the 1970’s and ... none. The Covid-19 mRNA vaccine is still EUA only.
That is all I needed to know to want to wait for a good 10 years of clinical data to be present. It was not complicated; it did not require a medical degree to understand. Just a review of history
You need to wait 10 years after the FDA approves a drug. Give it enough time for any cancers to start.