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
Instead of the usual bashing, I will bring up something valuable: if you think you should not smoke because of lung cancer or not drink because of liver damage you have the completely wrong ideas about the realy whys. I am not even judging you, it's the mainstream argument. But it's wrong. It's completely secondary.
It's about the things the stuff does with your mind. The craving for cigarettes is really distracting and it's really hindering at points.
Alcohol is such a strong intoxicant it can lead to really stupid actions which wide reaching consequences. Also, as a musician, it really tanks your skill. If you use it against anciety, it can destroy your life, no matter if you get liver problems or not.
If anything, I am all for so people stuck in bad habits have a chance that when they break out, there awaits more than a ruined body.