If the person can afford to start her own business and be able to sufficiently support themselves for at least 6 months without receiving capital from the start up then I'd say GO FOR IT! Worst comes to worst, you'll be a manger working UNDER someone else, and ultimately they will determine your fate. At the end of the day you will always have that lingering inner voice telling you that you should've took the risk & in my opinion that's the worse feeling one could have.