That really isn't what Kuhn is getting at with the idea of a paradigm shift. It's not an argument based on generational age or demographics, it's more about observational data slowly accumulating until current explanatory models become untenable. The people doing the accumulating and the people doing the sudden theoretical shift aren't necessarily the old in one camp and the young in the other. Granted I do see how that argument could be made, given the fact that a lot of the famous paradigm shifts were made by people in their 20s - it just isn't Kuhn's argument.