Wikipedia defines common sense as “knowledge, judgement, and taste which is more or less universal and which is held more or less without reflection or argument”
Try to avoid using this topic to express niche or unpopular opinions (they’re a dime a dozen) but instead consider provable intuitive facts.
The immune system is strong and defends your body against germs.
The immune system works 100% of 50% of the time. Immunology is the best way to convince someone that it’s a miracle that they’re still alive. Anyways, get vaccinated. Don’t rely on your immune system to figure things out