AITAH for turning down my fiancés request for their bachelor party?

I’m 34(F) and was recently engaged to my now fiancée 36 (M). The wedding is soon, so there’s a lot of stressful planning and coordinating that goes with it. They wanted a bachelor party, as is customary. When we talked about venues and what would be happening (I was worried about cheating, which is common at bachelors, or so I’ve heard) they proposed ‘Two Person Dog Walk Simulator’ on Roblox as the venue. I have no clue what that is, and I’ve never played Roblox. They said it was just going to be between a few friends and their boyfriend, Greg. And obviously, Greg’s a great guy, I have no problem with him being there, but I don’t know anything about Roblox or the venue or what could happen to my fiancé while I’m not there. I turned them down, saying we’ll ‘have to think about it’, but AITA?