Anyway, be very very skeptical any time someone tries to tell you something is inherent in how humans express themselves, because chances are very high that whatever studies there are proving that were done on speakers of an indo-european language
Case in point the bouba-kiki study was done on [drumroll] english and tamil speakers. It's been done on other cultures now and weirdly is way less universal than originally thought! I'm not saying there's nothing there but hey, maybe this stuff is more culturally ingrained than it is nature