My primary career came to a close as CEO of a public biotech organization. I'm now doing some light angel investing and sit on a few boards, however, the passion isn't there. My wife suggested I look into starting a venture, but I am concerned that - at 57 - I am too old for the program
You're not too old for the program. However, VC Firms are 15-20 year commitments and it's important for you to be realistic with the time comittment required in the coming years.