I recently started a big new project at work. Entirely new team, about 10 of us. We'll be working together full time on this for the next 2-3 years. None of us know each other.
We had the first site meeting, and then afterwards I assumed we'd all go for a drink to get to know one another. One of the women on the team decided as she lived close, it would make more sense for all the girls to go to her house for a 'girls night' with cheese and wine. It was quite apparent that the men in the team were not invited.
The men said alright then, we'll be going to the bar down the road if anyone wants to come. I went with them, as the idea of going to a colleague's house who I don't know is a bit strange. Plus, I thought in 2022 we had got over the whole 'girls night' thing. With close friends sure, but to the exclusion of male work colleagues? I think that is quite immature, and frankly, unprofessional.