That's probably my biggest pet peeve. IMO, someone's age has very little to do with how valuable or good they can be. In my work, we stopped giving raised because you got older and started given them based on effort, productivity, innovation and client relations (including how much work you bring in). Obviously it's more difficult to ensure 'fairness' with several different factors - but IMO, it's a f*** of a lot more appropriate than paying someone more because their older than someone else.