There are many things to consider and it's up to each individual. It can become exhausting if you choose to continue to learn and grow, but if you don't ... what are you doing?
I don't think it's like that. These substances cause nasty forms of cancer and are easily avoidable. I don't understand the purpose of Teflon other than to poison people. It's really odd how people follow even when they admit they're killing themselves for no benefit. Other than to fit in.