Big CARma doesn't tell us about boosters

This day has been emotionally exhausting, especially for people in Wales and in the UK in general, so I thought I'd repost something that is not about measles from the brilliant Refutations to Anti-Vaccine Memes, this time taking on the "If your child is vaccinated, why are you worried about them catching anything from my child?" fallacy:

Love it: "when you purchase your first car seat, they don't tell you that boosters are required. Until they make a car sear that lasts a lifetime, I will never buy one". I can just imagine the indignant tone.
Cue someone who points out that car seats are "not injected into the blood stream".