Driving is dangerous (especially in Dallas)
Flying is dangerous
Sun exposure is dangerous
Poultry is dicey
Too much beef will jack up cholesterol

If I sat on my couch eating green leafy vegetables I wonder how long I would live. And if I would consider my risk avoidance as a "life". There are certainly reasons to avoid the above and alcohol, too.

Three beers give me a headache so I never have more than two. I don't begrudge anyone the decision to abstain either. I don't think a couple of beers will shorten my life. I don't think abstaining will extend it.