It’s very different to visit a risk area as a tourist. Your chances of being buried are slim for a particle week. But for the people living there every day, the statistics compound. For a long enough period it’s almost guaranteed you will suffer. In the case of the downhill villages in Nepal, everyone knew those lakes would eventually burst , and in a matter of a few years. To continue building and living in those areas was completely reckless and I want to believe that anywhere in Europe they would have evacuated such villages decades before disaster.