In my case it's because often even the slightest bit of humor or attention or willingness to play along with the bit gets me way more unwanted attention than I bargained for. If I respond like a person wanting to have a little fun with another person and it gets me treated like a thing they can now win and possess, the genuine human interaction has been tainted by the implication that it wasn't genuine, there was always a motive and, because I played along, I'm now not a person to be interacted with, I'm a thing to be owned. I'd rather just not do the thing if that's one of the possible outcomes. And yeah, that's why I tend to not go out anymore.