Rotavirus immunity is partial. You only need to come in contact with a strain too different from whatever your vaccine or childhood exposure was and you’ll catch it again.
I got the vaccine as a child, and yet I caught it in my early 30s for the first time after moving to another country. Have you seen The Exorcist? I didn’t know projectile vomit was a thing for real until then. I also didn’t know about projectile diarrhoea. I wish I was still ignorant of these things
Wow I would have thought if everyone had food and shelter then we would have more pornography, not less. And I’d also wager we would have better quality porn too. Along with better quality of a lot of other things really