>>2440810Honestly you just need to socialize them, same as a dog.
If your cat is only ever in one room and the only human they ever see is you, then yeah they'll lose their shit when thrown into something new.
My cat's mostly chill, but she hates kids and cyclists (since she's never around them). But she's seen enough of them now to start noticing it's okay, so where she used to lose her shit before, now she just lies down and stares them down instead.