It exists in all children, regardless of location or culture.

Tho I think your issue is conflating teasing with bullying (the latter is more systematic, long term and doesn't tend to arise outside of totalising institutions like school, work, bourgeois family, etc).

Ahistoricism is not good theory. When you study cultures outside of state formations and burgher societies you find a much wider variety of behaviour, and a greater degree of acceptance of 'weirdness', both on an economic level (e.g. various anishinaabe families and even individuals having idiosyncratic ways of harvesting maple sugar, saying "do it properyl" isnt socially acceptable), an aesthetic one (see the vast varieties of clothing that natives chose to wear in the earlier phases of colonialism 1600-1800, for example), or personal or spiritual choices (e.g. some of the prophets of the Nuer in Sudan ate excrement or ashes, some spent hours arranging seashells into neat patterns). You'll also see variation in cosmologies, and people accepting random teenagers just saying "all the elders stories are wrong, I know how the world was actually created" with little more than an eyeroll. One of the best examples of the acceptence of difference (and why even outside of just being a decent person its important) is the Shawnee prophet Tenskwatawa (younger brother and main theorist and agitator behind Tecumseh's war). He was basically useless most of his life. He maimed himself early in life failing to shoot a bow properly. He spent the better part of a decade doing the Shawnee equivilant of couch-surfing and bumming food off everyone else while aquiring a drinking problem. He was still socially accepted, if not trusted with any particularly important tasks. Then, one day, he drank a fuck ton and had a vision and turned into an anti-colonial prophet/propagandist. In our society, people would go "lol drunk failure go away". In his society, people listened and he helped mobilise one of the biggest anticolonial wars against the US.