I think free soda refills in restaurants becoming normal in the 90s is an under-appreciated contributor to American health & diet problems. There were Big Gulps and such before that but giant 32+oz soda servings weren't as common as now (have you seen how huge the medium cup is at some fast food joints now?), and most folks had maybe two glasses of soda when eating at a restaurant, if they really liked soda. Suddenly, with free refills and a server constantly topping you off, it's almost natural to become accustomed to downing huge amounts of the stuff.
I have one once in a blue moon at the beach or on some outing when I feel like something more that water.
One 12oz can of soda is the recommended daily sugar limit for an adult male. How many people consume way more than that every single day. And it's been hidden in so many products over the years. Now it's almost worse using artificial sweeteners and sugar alcohols that have varying affects person to person.
Like gluten intolerance (celiac at ~1% and intolerance at 3-4%), may foods and combinations only affect a small piece of the population, but with processed franken-foods it's possible to affect much larger portions in varying ways. And it can be temporary or cumulative, such as with histamine intolerance, which is probably the issue most people who think they may have gluten problems lay.
The intersting part is, since we rarely have candy or sweetened foods in the house, my 5 year old child actually prefers popcorn to ice cream, and likes plain cereals like Smart Bran and Ezekiel. He has a bucket of candy from Halloween this past October and he hasn't eaten more than 2 pieces of it. He like his chocolate at least 72% dark.
You can get used to not consuming sugar, it just takes effort to find products without it.