Just to put things in context, https://www.bbc.com/news/articles/ce8444gex65o shares income for a good number of people now a days. (note that many of those workers are taking care of a family of 2+ members, most of the time)
I like to think we'll figure this out.
I feel like at this point it’s an inevitability that given enough time, capable models will be cheap enough for everyone.
For it to be fair, you would not only need good free models, but actual parity between free models and the highest subscription tier the big AI companies can offer. And I don't think that will happen in the short or mid term future.
You were not allowed to use a TI-92, which was the next step up. It had built-in solvers for many kinds of problems.
I'm not saying this isn't a concern, but addressing financially-based inequities in learning is not a new problem within certain bounds. There's established ways to deal with it. If we can get AI cheap enough that you can cover a year of education with $100 then we're in a good range.