I will definitely not enter the discussion about the safety or effectiveness of vaccinations, one of the biggest successes of medicine and even science in general and an irrefutable scientific consensus since... ever.
That said, I will just leave you with a thought: Vaccinations are very much like a seatbelt in a car. They protect you against a possibility. They reduce (drastically) the probability of you getting hurt. They save your society money by keeping you safe, happy, healthy and productive.
There's one difference though.
If you don't wear the seatbelt and you collide (or someone collides with you) it's a problem that is only yours (and you family's, and your friend's...).
If you don't get yourself vaccinated and you contract a disease, it's not only your problem. Far from it. It's also the problem of that poor kid who is too young to be vaccinated, or that other one's who is already old enough but can't be vaccinated (ever) because he is fighting cancer (and their families', and their friends'...).
That said... Why the hell are seatbelts mandatory and vaccinations aren't?! Let people drive as they want, let motorbikers drive shirtless if they want to. But stop allowing people to be biological time bombs.