I'm 34. I've been a programmer since I was 8 (learned Basic on the Apple ][, if that can be considered programming). I have programmed in Basic, Pascal, FORTRAN, C, VBA, Java, Perl, and countless other less significant languages for specific projects.
Counting instruments I've performed on, I've played (roughly in order) piano, clarinet, drums, saxophone, bassoon, oboe, French horn, trombone, tuba, and euphonium. I've also been a professional singer for ten years and have been paid to arrange pop pieces for a minor regional orchestra.
Just like programming languages, the first one is the hardest to learn. Thereafter, a mathematically-minded person can find patterns that enable the second, third, etc. language/instrument to be learned much, much faster. Both have to do with manipulation of symbols, understanding of time and sequence, and potentially infinite levels of sub-division.