I say “tissue” and “web search” so you’re talking to the wrong guy with that. Even though growing up everyone around me has said Kleenex and Google.

I've been curious of that phenomenon, why not juat ask "pass me a tissue?"

Cuz all the adults around me called it a Kleenex when I was growing up and I've internalized the word for that kind of tissue is Kleenex

Good old American brand loyalty.