Resources are not limited at all, we have more resources today in the US than any group has ever had in all of human history. We just choose to allocate them on things that are bad, like bombing hospitals or buying tanks for police departments or jailing millions for nothing or corporate welfare, and not things that are good, like learning or healthcare. In the golden age of prosperity for the US, the highest tax bracket was 94%. We tax nothing and demand nothing because we have been trained to think we deserve nothing; through no fault of your own, you have been tricked into accepting this status quo as 'necessary' when it is anything but, it is explicitly contrived and enforced by wealth to keep wealth in the hands of the wealthy at the expensive of the lives and livelihood of everyone else.
Self-directed learning is great, but if you've ever been a teacher or a student in a genuinely difficult subject you know autodidactism is VERY limited and works for a tiny few on a tiny number of subjects. Autodidacts generally have an oversimplified understanding of a subject they think they know because they lack the social engagement in the topic and deep understanding that comes from engaging with true expertise. They think they know far more than they do, nearly every single time in my experience interacting with them. Which is not bad, as a teacher this is an excellent place to have your students start because you can quickly disabuse them of this notion and they become eager to learn more.