Facial Hair and Height Sliders

I saw that heigt sliders are dificult because all the clothes and animations would need to be adapted to each height. But i also wonder if a neck height slider would be possible and if not, if it'd be difficult.

From all reports the game is about to wrap up with the Royalty EP being the last one with just a few updates and some kits. I doubt seriously they are going to undergo a major undertaking for CAS this late in the game.

All animations are specific to a sim's height, so although it would be easy to make sims different heights - as some CC sliders do - they mess up all the animations and resolving this would require new animations to accomodate all the new heights. And worse still, for animations where sims interact with each other,  all possible heights would need specific animations that relate to all the other possible heights. The number of new animations needed greatly exceed what's reasonable to make. This is the kind of problem AI may one day solve in games by giving it some example animations and having it generate intermediate ones, as needed, but this is a rather advanced route at this point. For now, in a situations where animations are fixed and each made by a person, the chances of them introducing lots of new heights seems low to me.