Every generation has some product/ingredient that they didn’t know was dangerous at the time: tobacco, lead, asbestos, etc. What is that item for this generation?

Teflon isn't really the problem, it is incredibly inert by itself. It is the nasty chemicals needed to process it and bond it to things that are polluting the environment and eventually getting into our bodies because they don't break down.

What's a good alternative? I used to love those teflon pans back when I was a teen.