I know 5 people who became COs in their late 20s. 1 is a really decent guy. The other 4 belong on the other side of the bars, but they happened to never get caught doing their illegal bullshit (drug dealing, robbery, assault).

Edit: I should specify that the illegal bullshit (that I know about) happened prior to becoming COs.

IIRC, they were paying the Florida contractor like 6X the estimated cost to built it.