Why do mentors need the same tag as the mentored?

The regulations indicate the mentor needs to have the same tag as the one being mentored. Why is this so? Is the mentor automatically disqualified if he were to fill his tag while hunting with the mentored or if he had filled his tag earlier in the season would he be disqualified as a mentor? Why would you disqualify someone who may not even be hunting but only mentoring? I guess that is four questions and this requirement seems to have a lot more to answer.
Answer: 
The mentor may still act as a mentor even if his/her tag has been filled.  The only legal requirement is that the mentor’s tag must have been valid in the same unit as the tag of the one being mentored.  The answer to the three remaining questions is; this is how the fish and game commission wrote the rules to govern mentored hunting.  The specific rule can be found in the Idaho Administrative Procedures Act (IDAPA) 13.08250.01.i  
Answered on: 
Wednesday, November 26, 2014 - 11:30 AM MST