The Upside of Irrationality. Succeeding against all odds. Chade-Meng Tan: Everyday Compassion. Your True Purpose in Life. Which is not to say that it is bad.
It is good to experience many different things. But these people end up going around in circles. They never stick with any one thing long enough to become a MASTER at it. They don't build up a network of contacts and a store of knowledge, expertise, wealth etc. to make as big a difference as they would have if they had stayed in roughly one direction for a longer period of time.