Does Age Matter?

I was surfing around over there at Youth Specialties and came upon a discussion about age. The original post writer talked about his first "pastorate" in youth ministy: He was 19 years old. It was interesting to read some of the early 20-somethings, some who retorted that a number could not possibly define the readiness of taking on a youth ministry position of leadership.

Oh, how I thought the same thing. When I was in my late 20's (I'm not far from that now...) my current pastor told me that he didn't think people are really integrated until they are 29 or 30. I was a little incensed at his comment. I am wise to this fact now.

I have had a lot of bumps and bruises, failures and joys. I wish I knew then what I know now.
But, does age make a difference? Is it better to be younger? Closer to their age and thinking? Older? With more wisdom and experience?