Why would someone want to quit coffee unless they have specific medical problems? It brings benefits besides the flavor.
The same could be said for alcohol as long as it's not abused.
Small amounts of alcohol daily have been shown to have significant health benefits.
Even larger amounts daily are acceptable if you pace them properly.
Elizabeth Bowes-Lyon lived to a ripe old age of 101 drinking heavily every day:
https://people.com/royals/queen-mother-drinking-habits/Don't confuse abuse with use.