Why is it wrong to hire a developer that's had experience in the exact field in what I'd want them to work? Isn't that a great deal of ALL hiring? It's a bit l

Why is it wrong to hire a developer that's had experience in the exact field in what I'd want them to work? Isn't that a great deal of ALL hiring? It's a bit like having a home builder job interview: "Have you had experience framing a house? No? Then I'm a little unsure you'd be fit for this job." It's not wrong for me to say, "no, you've never done this sort of thing before, you consider it too hard to do in an hour? You might not be the best fit"