i don't understand this reasoning.

Is there a lower standard set to kill a buck with a bow then there is with a gun? For example, would you pass on a buck with a gun that you would shoot with a bow?

Is this good management practice? pass on a buck with a rifle because he is too young but shoot him with a bow because it's with a bow?

i don't understand this reasoning.

I agree with Txshntr..
I have spoken those words but they're not coming from a whitetail management standpoint... I agree that you shouldn't violate your game management to take a deer with a bow... I have rifle hunted for 30 years and bow hunted for about 20. IMO there is no way that one can compare sitting in a box blind and snipe shooting a deer at 250 yards with a rifle to shooting a deer with a bow at 25 yards. Understand, I do still kill my meat with a rifle because I can shoot the animal in the head or neck and not ruin any meat but I "trophy" hunt with my bow. I hunt family property in the hill country where a 140 inch buck is extremely rare. I would not shoot a 140 buck with a rifle because I have killed better in the past when I was able to hunt South Texas in a time long ago when an average person could afford to do so... Anyway, I would definately shoot that deer with a bow because it is still a trophy to me personally (because my best bow buck is 120 inches). IMO a doe, pig, coyote, fox, javelina or any other animal taken with a bow is a trophy simply due to the level of difficulty involved in the entire process. However, I would not classify a doe, pig, coyote, fox, jalelina, or most other animals as a trophy if they were taken with a rifle. I think that a mature buck of any horn size is a good trophy with a bow (once again, management goals considered)... I cannot say the same about the rifle.