TDD, while a good idea, is never used because it is highly unnatural when the stakes are low, which they are most of the time. And when the stakes are high enou

TDD, while a good idea, is never used because it is highly unnatural when the stakes are low, which they are most of the time. And when the stakes are high enough - you'd want to hire a real QA engineer to write all the tests anyway, including the unit tests.