I did a Mathematics Batchelors 7 years ago, but was always having difficulty trying to cram everything in or understanding things. Naturally, this didn't pan out too well. But looking back on the notes now, that daunting information seems a lot more readable than it did before exams. So, in summary, no, I don't think you're too old. It would appear that the myths of being too rusty are bunk. Besides, when you were a lot younger, you might have been interested in just partying to understand anything properly! quite a lot of undergrads I knew just memorized proofs and exercise questions to get by, but didn't quite get an intuitive feel for it.

I did a Mathematics Batchelors 7 years ago, but was always having difficulty trying to cram in theorems and proofs until they started to merge into one(!!!). Naturally, this didn't pan out too well as a revision method. But looking back on the notes now, that daunting information seems a lot more readable than it did before exams. (I've been reading up on Representations of Groups) So, in summary, No! I don't think you're too old. It would appear that the myths of being too rusty are bunk. Historically, Mathematicians have been known to have done their best work young. Then again, in the past a lot of them popped their clogs a lot more quickly than Mathematicians today. Besides, when if you were a lot younger, you might be just interested in just partying and all sorts of juvenile things at college thus being a little distracted from understanding things properly in the Mathematical World... Quite a lot of undergrads I knew just memorized proofs and exercise questions to get by in the exams, but didn't quite get an intuitive feel for it. The blank looks i used to get from friends with Firsts asking them if they can remember what a Stochastic Process or to get them to write the definition of continuity for a single variable...... :-D