Implement option for playable ghosts to be exempt from certain mechanics

I had this really cute idea of a vampire sim who's living together with the ghost of this little girl, and they're actually both several hundred years old. That seemed like a dark sitcom premise that would make space for some fun things, but nope, She's just a normal kid sim, but see-through. 🙄

I feel like I shouldn't need a mod to make my ghost sims not age, or make my ghost children and teens not have to go to school. And why would their physical needs (hunger, bladder, sleep) decay? They're DEAD, what do you MEAN! There should simply be an option to turn this off in CAS, since there is an option to make them a ghost in CAS. I didn't need a mod to make a ghost, I shouldn't need a mod for them to play like a ghost. And I don't wanna have to mess with everyone else's life span and aging rules.

If I hear that this is only an option in the Life and Death pack, I swear to Maxis...