I don't age my meat unless I have a walk-in cooler at my disposal. Otherwise, I cool it as quickly as I can, then proceed butchering when I'm back home. I keep the meat on ice in large coolers. I cut and wrap my meat and it goes right into the freezer. I've never had tough, chewy, or gamey tasting meat - including caribou, elk, antelope, deer, bear, etc. Works for me. Proper field care is essential in the end product, so hanging isn't as important, in my opinion. Cooling the meat, keeping it free of hair and debris, and not running it through a bandsaw are of key importance. Why anyone would want to drag bone and bone marrow through their meat is beyond me. Beef fat adds flavor; wild game fat taints it. I also remove all silverskin, sinew, and pretty much anything "white" off my cuts of meat. Again, cooking game with fat left attached will taint the flavor.
My young daughters love wild game. I was a proud dad the night my five year old said (with a mouth stuffed full of elk stroganoff), "Dad, I like to look at animals but they are more fun to eat!" I couldn't have said it better.