It’s a lot harder to build and program a sex droid than build a combat droid. I mean, combat droids are built to kill while sex droids aren’t very popular if they end up hurting or killing someone. Of course, dead men can’t ask for refunds. I’m sure you’ll say that combat droids need to tell the difference between civilians and combatants. But places we send them, does it really matter? Plus, we tend to use them for enforcing curfew and anybody out after hours is considered a legitimate target. I guess you could say the same about sex droids.