My advice would be just let it go. Here's my family situation: Mum wanted to do but was kind of scared - ended up being one of the first ones in the country to

My advice would be just let it go. Here's my family situation: Mum wanted to do but was kind of scared - ended up being one of the first ones in the country to get because of her job. Dad wasn't going to do it,never spoke about why,etc. Sister and her husband categorically refuse to vaccinate ( she's in pharmaceutical industry+ some weird religious thinking going on). I did it as soon as I could. I kept arguing with my sister for ages about it and eventually thought for my self: screw it, we are all adults,I don't neither energy nor need for this, you do it your way. Dad got vaccinated recently and when I asked why he finally decided to do it, he said that he won't be able to keep his job without it.