

Cars a combination of all kinds of shit. Rivets, welds, adhesive, clips, you name it. Aluminum frame cars use more adhesive. High-end applications where the heat of welding can cause dangerous warping also is a factor. The Lotus Elise, for example, uses adhesive rather than welds. Bolts or rivets put holes in things and that’s not always tolerable.
The field of Anthropology has gone through some WILDLY problematic periods. So-called “scientific racism” is a big one but shallow assumptions about historical cultures based on current-day social norms was very common.