I agree with you on the incomprehensibility of mathematics Wikipedia pages, even as a working mathematician I can really only read the pages about content I alr

I agree with you on the incomprehensibility of mathematics Wikipedia pages, even as a working mathematician I can really only read the pages about content I already know in-depth. But Wikipedia (and many other reference-type sources) are not the place I would go to learn a new topic in maths, I would always prefer to read a short book aimed at the correct level of knowledge, or a set of course notes (many of which are available online). I don’t think Wikipedia is representative of the teaching of maths at all. Many of the courses on very abstract content I’ve taken (from other people, in person) has been very concretely introduced, or at least the course has been run with a 50/50 split on the abstract (general theory) and the concrete (solving problems).