Why did Afton not want Elizabeth near his Robots?

I Don't get it. . .

If He was REALLY such a Sociopathic Piece of S***; That he doesn't care about his own offspring; WHY Would He Tell Elizabeth to stay away from his machines; If he were as Sociopathic as Shaggy Afton is in the Movie; >!With Him Being Abusive to Vanessa; and Forcing her to watch him kill kids; AND Even trying to kill her when She defied him!< Why did In-Game Afton Tell her to stay away from Circus Baby; AND NOT JUST FORCE HER INTO The Robot Himself; If He REALLY DOESN'T GIVE A F*** About Her Staying alive; If Her Life meant NOTHING to Him; Why wouldn't he have lured his own daughter to Circus Baby; or tell her to get in the robot himself?! If he's REALLY this Completely Irrdeemable S***Stain that we all say that he is; Why doesn't he just Kill Elizabeth by his own Hands; He clearly doesn't care about Michael's Life, Why Would Elizabeth be spared from Afton's Killing Spree?! If He doesn't care about Michael; WHY WOULD HE GIVE A DARN ABOUT Elizabeth enough to NOT lure her into Circus Baby Himself; like he would with ANY OTHER Unfortunate Child?!!