Why did we never get a live action Jetsons movie in the same vein as The Flintstones with Rosie O'Donnell as Rosey the Robot?

I'd even accept a lesser "Viva Rock Vegas"-style movie with Alan Cumming as Orbitty.

No matter how many times I replay Elden Ring and how over-levelled I get, I will always avoid and run away from the big fuckyou bears.