Do not want.
You give people the idea they can live forever they just going to go nuts.
Saw it too many times with the stomach stapling - oh I'm thin now - time to eat more.
They can print livers - I'm gonna drink twice as much now.
They can print lungs - fuck that I'm going to smoke cigarettes and cigars
Well with that kind of stomach surgery you physically can't eat more.
Also if you want a lung transplant you need to meet a very big selection criteria... One of them is no smoking. Same with livers, no drinking.
So yeah.