tdap shot?

E’
My sister weNT with me to my appointment today and the doctor had me get the tdap shot. I told my sister she should get it too and everyone that comes in contact with baby should get it. She's very hippy and refuses to get the vaccine. She says that she won't come near baby is she feels sick but I would feel better if she got it. Anyone dealing with similar situation? She refuses to get the flu shot or any other vaccine saying that there's tons of people without vaccines that are totally fine. She's very granola and that's fine but I don't want to put my baby at risk