I think the mentality is shifting a little as millenials and gen z are slowly letting go of the meritocratic myth, but blaming internal motivations more than context is a problem in the American conception of the world we still suffer from as a nation. The inability of us to accept that our actions are not the only determining things in our lives seriously limit our ability to fully comprehend the world and how it really works which leads us to thinking ideas like work requirements are actually sane rather than completely counterproductive.
People who make bad decisions will often go without resources. Society thus diverts resources to people who make good decisions. Things work better this way, with much less waste. We get more messed up families if government pays people to have messed up families.
I don't think that "she mothered too young". There is nothing wrong with age 16. The problem is instead that she didn't first find a suitable husband to support her family.