This is one of the reasons why I pursued engineering instead of a hard science. Mathematics in particular feels like an ivory tower with a bunch of gatekeeping.

Better language and grammar around core concepts could improve accessibility, but few in the field that I've encountered seem to care about that.

Biology and chemistry are a bit better, but there are still improvements that could be made. You can't easily go from zero to biochem or ochem, and I don't think that has to be the case. Gen chem and gen bio just suck at presenting themes and concepts and instead focus on being a smorgasbord of facts (that you later have to amend or unlearn).

Computer science and electrical engineering are a walk in the park by comparison. We have all sorts of interactive tools and visualizations of algorithms and analysis. We keep refining and making the onboarding process easier and more accessible.