It is no longer the 90s.

A quick trip to Wikipedia illustrates that education is indeed an implication of digital divide, and that quite often teachers have homework requiring internet access: https://en.wikipedia.org/wiki/Digital_divide

I would speculate it is easy for such gaps to exist because it is easy to assume internet access is widespread.

Perhaps, as it is no longer the 90s, and with interest in human progress and easier living for all, we could aspire to not trap our lower classes in a decade now 24 years old and counting, with institutional knowledge on how to support techniques of that era fading to time.