I was watching an OyTube where they show you how to make chain mail. There’s two kinds of folk involved in it today: the “creative archaics” that dress up in medieval costume and attend big fairs ... and the dominatrix types that are into S&M and service customers like Quartermain.
Leaving the kink aside... I can see why people get addicted to this kind of thing. The craftsmanship alone could consume a lifetime of study.