To say yes to someone who has invited themselves to my house?

[PrinceHaz]

This is someone (not a potential date, just someone I may become friends with) who I’ve not met before but have exchanged a few texts with. We’d agreed to meet up but hadn’t said where. They’ve texted suggesting spending the evening at my house and they’ll bring wine and snacks.
I’ve thought about it and said yes as it’s no skin off my nose, will just tidy up a bit.
im just wondering, as it’s most definitely a no no to invite yourself unless you typically do this/know one another well, why would someone do this? I can’t imagine ever inviting myself to someone else’s house, let alone someone I’m meeting for the first time.
They seem lovely and definitely not a CF so am just a bit fascinated about the psychology behind them making the suggestion.

It is a bit bizarre to wonder why someone would do something so utterly ordinary that most people wouldn't think twice about tbh.

Your whole premise seems to be that it's really odd/out there/rude of her to invite herself to yours, but in the circumstances you describe, it really isn't. It's a perfectly normal and acceptable thing to do, and people with normal experiences of and attitudes towards social interactions would generally just know that.

If she was insisting on coming to yours, or wouldn't let it drop, or was hounding you, then that would be different. But this is a situation where you know each other, you mutually want to meet up and she's simply made a suggestion (that happens to be super easy, no effort for you) that you can decline, or suggest something else if you wish.