Since it will be practically impossible to remove PFAs from the planet's surface and atmosphere short of hoping it will all eventually wash out and gets buried

Since it will be practically impossible to remove PFAs from the planet's surface and atmosphere short of hoping it will all eventually wash out and gets buried in sediments (but will it, ever?), when so much is at stake at our very existential foundations, I believe we should forego the immediate wide-scale application of novel compounds unless they have plausibly be shown to be safe. Yes, that can prove to be very difficult but somehow I feel having one less formula for making anti-stick pans or, historically, having to use a slightly more expensive antiknock agent are small prices to pay if it keeps the air and the water free from chemicals that cause troubles for decades if not centuries for uncounted numbers of people and animals. There's always some risk left no matter the rigor of testing. Shouldn't keep us from doing our best.