Came here to say this. I'm 27, and 3 years ago started to get some pain in my hands when typing for extended periods of time. Given that I'm a software engineer, I'm likely to need to type for a very significant portion of my life. Barring new input technologies, I might be doing this in my career for another 40+ years. I switched to Dvorak to head-off future RSI issues, and it has made typing far more comfortable for me.
