I’ve tried quitting caffeine in the past, but the problem I run into is that I’m actually not a coffee drinker, but a Diet Coke drinker. I don’t enjoy the taste of plain water. So at a restaurant/drive thru/etc, my options are diet soda (with 0 calories) or something caffeine-free with hundreds of calories. When you’re trying to budget calories, that hurts a lot.
At least I’ve been able to reduce my overall consumption of caffeine a bit, but I haven’t been able to cut it out completely.
Zero-sugar, zero-caffeine sodas seem to be slowly rising in popularity recently. I'm hopeful that we'll start to see them more often as options in restaurants, because like you said, it's frustrating when I go to a restaurant and must choose between drinking massive amounts of sugar, or drinking caffeine. Usually, even though I'd like to order soda, I end up ordering water because I struggle to justify either stimulant to myself internally.
At least I’ve been able to reduce my overall consumption of caffeine a bit, but I haven’t been able to cut it out completely.