My biggest challenges was to find material which explained to me certain concepts. Stuff like 'why can you transform this mathematical notion to this short form? How do you know that? Oh i learned that in the gym' YouTube helped, other students helped but it was time consuming.
It would have helped me much more if i would have had a proper central source of high quality material. That would have allowed me to understand it easier and better and with less effort for others around me.
THIS then should free up those people to do more 1:1 supervisions (which might be common in Cambridge but is not everywhere the same). It should also allow those people to optimize how material is explained.
And this allow more people to get education which is key.
And i don't think this should just start at university level. Why not start with when you are baby for your parents?