I think you’re spot-on with making learning as accessible as possible to have a more informed populace, but making the information available is only half of getting people to take it in. Trauma blocks critical thinking and internal honesty, and we have a massive trauma and PTSD problem, to the point where poverty and food insecurity meaningfully reduces effective IQ. Thankfully MAPS is working on treating PTSD at scale. I have set up a recurring monthly donation and I encourage anyone who values intellectualism to do the same, so that we may swell our ranks with those who are currently too hurt to think clearly.
Helping those in need overcome their difficulties and become ready to learn is a part of accessibility to Education. It's a part of offering equal opportunity to all.
Government is also blocking research and treatment of PTSD using certain drugs to help pharmaceutical companies. For many years getting medical cannabis or other substances deemed illegal was next to impossible without becoming a criminal.
Sure, they are a non-profit organization doing research on some breakthrough treatment options for mental health issues like PTSD and depression. You can check out their website here: https://maps.org/