I think the dominant attitude in the US is to stick your head in the sand. Tons of older homes have asbestos yet almost zero of them report it in their listing or their disclosure report. If you test it and find it you have to report it. If the buyer tests it and finds it, the seller doesn't want to know because then they'd have to report it. Somehow knowing the house has asbestos lowers it's value significantly more than willfully not knowing + almost certainly having it anyways.