I don’t think it’s so much a moral failing, but one of privilege in the form of being raised in a stable family, having positive role models and being taught basic life skills. If your parents weren’t around to teach you these things or if you were preoccupied with survival as a kid, then you are not equipped to thrive in life. Through no fault of your own. Had you been taught some of these things, then you could be self sufficient. Of course illness, changing job markets, rental costs, inflation, and so on can impact a person’s situation as well, but these can be semi reasonably planned for as well, if you know how.