something sigh-worthy, but...

I think Mick Jagger is talented, yet immature. But I still like his songs!
OH, also, Mick Jagger is expecting a child at 72.

The idea that some environments are far more tolerant of immaturity than others...afterall, sometimes immaturity still makes money, doesn't it? If money is the object and it's being made, who cares? Be positive!

"...it is apparent that either the gray haired veteran or the 30 year old cheerleader can be a mature or an immature leader. The differentiating factors are often humility, wisdom, and courage." 

~ http://andersonleadershipsolutions.com/ten-examples-of-immature-leaders/