How many people do you know who have used an ivory comb? Were your grandparents even around when they were debating the ban? I find it hard to believe that people who enjoyed using ivory products 100 years ago would have supported banning them. It’s disingenuous to assume that the ban wasn’t controversial at the time just because nobody today has even heard of everyday items being made from ivory.
People adjusted because better materials came along. That’s the main reason governments were able to ban ivory: there was finally a viable alternative to piano keys and other everyday items made from ivory. Ironically, plastic was the wonder material that replaced ivory in many applications.
Few people remember what the pre-plastic world was like. It wasn’t better. It was hard to cheaply keep things sterile in hospial settings. Food spoiled faster without cheap, airtight storage containers. Everything was heavier or more flammable because wood, paper, or metal were the only comparable substitute materials.
Maybe we should be discussing how we discover the next wonder material that can make plastic obsolete instead of hand waving and saying “people will adjust” if we make it illegal to use and produce.