Just to play a slant of devils advocate we could be doing this about the common diet so high in sugars (or carbs, the quantity many eat is not necessary and is mostly a result of pleasure, culture issues, and stress management). The common diet is truly slowly killing many people, too large of a weight is becoming more and more common- people are straining their body significantly and greatly shortening both the general length of their lives and quality of that length.
Not that it should matter, but said by a large guy (6'1'' 260lb) - not a skinny person looking down on everyone lol.
There are many foods in FFXIV could fall under "purely for pleasure' as it's relatively non-valuable for the body to consume. Certainly you can do things to lessen the issue, eat a bunch of junk food but you're an Olympic power athlete.. well.. fine.. But your body in occasional quantities could do that to alcohol too (obviously frequently and in large quantities your body would be giving up, but same to 'junk food').
Which isn't to say ban all food lol, that'd be silly, but no alcohol imo is along the lines of "no junk food in FFXIV". Ban the Twinkies! lol
While vices are important to be managed or they can go all sorts of wrong... I think, at least currently, vices are very much a natural part of our lives that we take part in at all ages (junk for for kids, not saying lets get kids smoking lol).
Also imo there are some very tasty drinks, and some very very .. non-tasty drinks. You just probably didn't give many a try because you're already with a predisposed negative outlook on the idea (which is fine), but to say the variety of flavors in drinks is absolutely insane. I've a plum wine right now that is sweeter than most soda and you can't really taste the alcohol but you feel it internally lol. Personally I do limit drinking because I don't fancy the idea of being drunk, or causing severe stress to my body (am trying to be less weighty too :P), but all in good time.