Yes, there are some counterexamples. Bamba (peanut-butter-flavored puffed maize) in Israel is one, worth studying as it is commonly given to very young kids.

Yes, there are some counterexamples. Bamba (peanut-butter-flavored puffed maize) in Israel is one, worth studying as it is commonly given to very young kids. But generally speaking, the USA is an outlier on the prevalence of Peanut Butter specifically, and to a lesser extent peanuts in general.