I studied and trained as a lawyer and am the team leader now of a marine claims team in an insurance brokers office, but I was always interested in computing and use Perl almost daily for data-munging and reporting.
Most computer languages I learned when young are now part of the (old) history of computing: COBOL, FORTRAN, APL, Forth, some forms of BASIC, ...
I actually started using Perl 4 about 20 years ago, running it on an ATARI ST computer. Then I had to switch to a Windows PC and started using Visual Basic and left Perl for many years. I came back to Perl when Perl 5 was well established, but switching languages was not a big job. Yes, I had to keep the Camel book close to my keyboard for some time (this was the time before we got continuous Internet access), but just by doing it on a regular basis quickly got me "thinking Perl" again.
It is like everyting in life: you are never too old. I am now 50+ and met a much younger girlfriend. I can sure tell you she keeps me young. Same with Perl: it will keep your brain young and agile too.
A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey JamesMy blog: Imperial Deltronics