[AlbertCory]

The sibling posts make the right point: lots of things are objectively bad for your body, but your emotions are part of it, too. If alcohol or whatever makes you happier, then it's "good for you." Until you have so much that it's not good for you anymore.

It's the same for sweet desserts: why TF should you deprive yourself of all of them? Just keep it in moderation.

[SomewhatLikely]

We could imagine a very different society with much less consumption of alcohol but people still being equally happy. If someone is made to feel unhappy when they don't drink because everyone around them is doing so, the fact that then consuming alcohol makes them happier shouldn't be pointed to as evidence the person is making a good trade off between bodily harm and happiness.

[AlbertCory]

This post is kind of involved.

No, you shouldn't be made to feel unhappy; or rather, you should push back harder against anyone who tries to effectuate that. Being sorta Stoic here: no one can "make" you feel anything.

It's none of their business, after all.