Mizter T wrote:

I've also noticed and pondered on why Student Oyster cards don't give
the user discounted PAYG fares. It would of course be helpful for
students who can have odd travelling patterns (not needing to go to uni
everyday etc).

More of a reverse in a sense - many students living within walking distance
(or a single bus journey) of the university *and* taking local jobs.
Comparitively few are commuting on a daily basis on a scale where the
discount becomes significant.