I could fault the federal government. At reception center, a sort of pre basic training, tobacco representatives were handing out samples as fast as their little hands could move. Still, it was a choice, and in 1962 we were already calling them coffin nails and cancer sticks.
Personally, I'm not that worried about being dead, but how it happens is a concern. COPD is a long, slow death while you're on a very short leash connected to your oxygen bottle.
We are all going to die, but hopefully, we can minimize the less attractive ways to go.
Oh yeah, we were talking about exercise, weren't we?