Probably because the government thinks you don't deserve to die even if you're stupid. Just like people who get helped even though they stay in the path of hurricanes despite evac orders
Very noble view of the government .. another view is, the government wants order, and desperate people tend to do drastic things, which disturbs order. And with evac orders ... there is also the assumption that not everybody got the order clearly (or understood it) and you would have upset citiciens who complain the government let elder people die ..