Never had junk food growing up. Wasn't really part of the dietary menu, so didn't get used to having it.
Our children didn't have it much either because we didn't really have the $$$ to spend. We had 5 children who were "food vacuums."
Buck and I aren't/weren't much of junk food eaters. It's taken me the better part of 6 weeks to eat a 12-ounce bag of potato chips. There's still about half a bag left.
Sodas? Maybe 3 per week. Caffeine-free, diet soda. Haven't had caffeine in a long while due to a medication I take. Much prefer lemonade or water. Never been much of a water drinker, but I'm getting better.
I used to have the world's worst sweet tooth but, sadly (?), it's seemed to gone to live somewhere else. Still, chocolate has its lure.