There is certainly also the possibility which the Aterians wore jewelry for a similar rationale that plenty of people do nowadays mainly because they appreciated the best way it looked and considered it enhanced their appearance. This paper reconsiders glass beads that have hitherto been considered early medieval in day. https://medium.com/@spoilmevintagediy/the-rich-history-of-beadwork-a-journey-through-the-ages-4e4fd2e474cf