While it is totally a personal choice, it's not one that is free from consequences for both those who take it and ultimately for those around them - and you should realise it is also a position of immense privilege to be able to reject freely offered medical support from people who have dedicated their lives to improving people's health outcomes for what is ultimately shit pay, and even shitter working conditions. Like... a proper first world problem.
If I had rejected the advice of doctors and decided to not put anything they recommended into my body, I frankly would have been dead 20 years ago.
My wife's family are from Angola, and that country's most destitute would walk miles to get the basic care and vaccines we have readily accessible just so their infants don't die before the age of five - because they have seen first hand what a world with no vaccines or medical infrastructure looks like.
Being anti-vaccine is a position you can only really take if you have the luxury of not having to worry about the downside risks of not being vaccinated. And usually that's because somebody else more vulnerable is living with that risk.