My point is that most everything comes with risks and we trade them off with our desires or needs. The recent push to evangelise that there’s “no safe amount of alcohol” is rather silly in the light of that. There’s no “safe” amount of driving or cycling either but we do them anyway because they satisfy our desires and we judge those to be worth the risk. Alcohol (as long as one is not addicted) is the same.

My point is stair climbing isn't a relevant comparison. It's often required, and usually an activity that improves ones health. Alcohol--even in moderation--appears to have only negative health effects and is entirely optional.