Having something terrible happen to me and my family not knowing how to find my seed words has been one of my biggest worries. My particular problem though is also that my family doesn't really know what bitcoin is, and they don't really care. Any detailed instructions I write, I need to write down on paper, but that could get lost in a fire or some such. If I put instructions on my computer or in the cloud, they could be found by a hacker...but more than likely no one in my family would even bother to look lol.