The harsh reality, despite what privacy pundits might say, is that people... just don't really care. And that's fine? It's great Apple lets me tell an app not to track me. But if they didn't? It doesn't make material difference to me. Okay I bought cat food and now I see cat toys Instagram ads that I may or may not buy... okay?
It's not like insurance companies are able to use the data to deny you health coverage or something (yet, anyway). It's just used to support more consumerism atm. When that bridge is crossed then people might care, until then ¯\_(ツ)_/¯
