Choice is great for veterans, but for someone learning Python or Ruby, how do they know what to pick? How to they know that they're not going to bet on a losing horse that stops being actively developed after a while and doesn't do anything for their career. Veterans can afford to play around and test out new frameworks, because they can always fall back to Django or whatever pays the bills, but newbies can't.
They have to do their homework, ask around, and make the best possible guess. And more importantly, focus on the more general skills than the specific framework.
If someone is getting started in a vacuum, they're doing it wrong.
