I have no problem shooting a doe with a fawn, as long as the fawn doesn't appear to be a late born fawn(size comparative to the doe will tell). If the doe is shot, the fawn already has the capabilities to survive on it's own, It will more than likely join another family, but I've seen a lot of button bucks alone with no mother around. I think it depends on the deer, some does will run their fawns off before breediong season begins and some button bucks take out on their own earlier than others. If I needed some meat and didn't want a whole lot I would shoot the fawn(as long as I can confirm that it is not a button buck with my binos). Either way it would benefit the herd and my freezer. I do consider myself as a trophy hunter(but I do shoot does for meat, I'm a rarity I guess), so I wouln'd even consider shooting an immature buck. It took me many years of hunting to mature enough to become a trophy hunter. At first it was hard to watch those little bucks walk by, but now It's very enjoyable. You just have to be willing to "eat" a few buck tags.