He has balls, I'll give him that, and I don't see any problem with changing things - even very large things like ones career - in order to find what makes you happy and makes your life feel fulfilling.
I'm finding that I don't have that in me. The thought of leaving a well paid, comfortable and regularly challenging job in software development, even if it's not the passion that fuels life for me personally, for a future of uncertainty is far too daunting for me to take action and "try something new".
Maybe that's deeply seated in how I perceive myself and others to judge those who do try, and sometimes fail at trying, their hand at other things along the way? I don't know, but at this point in life I commend anyone who tries to break the mold we've been pretty much set into since we were teenagers.