Because the only "good" robot girl mod for NV requires like 5 or 6 other mods and the one that is an absolute requirement is from a different site that's not super easy to navigate and at the end of it all they aren't even THAT good, definitely not worth the hassle, they're just white latex skinned girls with A chrome plate on each segmented limb and glowing eyes.

There's no screen faces, stylization or add-ons, they are literally just women and that's the best we got in NV (last I checked). Modders only started getting horny and open about their kinks around the time of Skyrim and then really open about their kinks around the time of FO4, In NV the best we got were nude mods, "make it relatively prettier" mods and one very clunky sex mod that broke everything, that's the extent of NV horniness back in the day.

Why didn't you turn ED-E into a robot girl? Why is it just a normal girl?