Norbas + Swisseddie,
Don't worry about the age thing.
There is a good mixture of ages on the courses - mostly 21-26 I reckon with a smattering younger and a few more 'mature' TATC's.
I'd guess about 10-15% of the people who started our course were 27 and over.
There was no obvious correlation between age and passing either.
Personally, I found it really hard to get into the swing of studying to start with but it quickly became the norm again.
Good luck guys.