Huh, I never knew this expectation was a thing. I invite people over because I like spending time with them, and them choosing to come to my place to spend time with me (rather than declining my invite) automatically makes it a two-way street in return. I don’t need an invite to their place in addition.

It’s similar to how I feel about birthdays. I’d never expect anyone to bring me a present on top of that, because the fact that they’ve chosen to come hang out at my birthday is already their gift to me.