RE: Would you shoot a fawn?
Absolutely not. Even before I killed my first deer, I passed on fawns. When my oldest son was on his first deer hunt ever, he had a fawn spend the entire first evening under his stand. He could have taken virtually any angle shot at any distance--including point blank . . . and he left his bow on the hook. He was rewarded for waiting by killing a P&Y buck for his first.
They'll never get to be big if you kill them when they're little.