My mom is not anti-vax, but did go out of her way to expose me to kids from my preschool who were being kept home with a range of standard childhood illnesses; she believes that actual live exposure gives better lifelong protection than just vaccination.

She also wanted to make sure that I got all the stuff you couldn't vaccinate against back then (like chicken pox) when I was too small to actively oppose my own treatment. I do faintly remember having chicken pox and being miserable (they zipped me into my footy sleepers and pinned the zipper shut so I couldn't scratch them open, plus of course ointments and stuff); I'm told I was barely three.