I can see the reasoning here but with frequent handling (so putting your hands in the enclosure for reasons other than feeding), feeding inside an enclosure should not turn your snake into a hand hungry monster. But this is not the topic here and I am not trying to debatejust pointing out the other side of the story.
When I told my boyfriends mom what I feed my bp she freaked out, but she was still interested. After several talks with her about WHY I HAVE TO feed my bp mice/rats, she understands that the snake and his set up cost alot of money and to decide at this point that "oh that pooor little mouse, I think I'll let my bp starve and save that poor little $2 mouse" would be throwing away a lot of money (she didn't care much for the "but I love him so much feeding him a mouse makes me happy because I know he's healthy" explanation) She is also terrified of snakes but slowly coming around.