Humans are human, someone being born in Africa doesn't magically mean that they will never understand technology.
Humanity's superpower is the ability to copy and mirror each other very effectively. It does not require advanced awareness or intelligence to do it. Most people copy others subconsciously!
Majority of people won't contribute anything technologically, but they sure as hell can copy.
Very little of what the west does can be considered normal.
If you use a strict definition of normal, like practiced by a larger proportion of the world, then they are actually normal and we are WEIRD. If you add history into the mix then that type of dressing was common in basically the vast majority of cultures for the vast majority of history