One of my dads friends had a business installing asbestos siding in the 1960's. He's in his 80's and seems fine. On the other hand his wife died of mesothelioma 20 years ago.
My father worked delivering asbestos, every one of his co-workers that did front line deliveries are dead, mostly lung health related issues seemingly related to asbestos. My dad is in his 60's and fine so far.
My uncle spent some weeks doing DIY projects with asbestos. Hes has mesothelioma now. Turns out he has (along with many in our family) a genetic disorder that makes certain cancers like mesothelioma much more likely.