stages emphysema

Once somebody has been diagnosed with emphysema, how long could they potentially live?
I know there’s not set in stone answer as to how long someone has left as all cases are different. But I’ve been talking to this guy and debating whether or not to introduce him to my kids because they both have seen their fathers walk out of their lives and I won’t introduce them to another guy if he’s not gonna be the one to stick around for good. Well he just told me this morning that he has “beginning stages” of emphysema. He’s 26. Could he still live a normal life and grow old?
Wow 26 is young to have emphysema. My Mum was diagnosed at 70 and died at 87. At 26 if he looks after himself I would guess he could live into his 50’s/60’s. I’m not a doctor so I’m just guessing. If I were him I’d go healthy in a big way.No smoking or drinking alcohol, organic food, excercise in moderation, no drugs unless prescribed. Hope it works out:-)
