Whilst I believe that good TDD practices should be the norm in any software development, there is still a fine line between maintaining that balance of ensuring

Whilst I believe that good TDD practices should be the norm in any software development, there is still a fine line between maintaining that balance of ensuring that your test would cover those operations which are vital to your software. I think it is an overkill to have all tests attached to your software even on the most mundane part. There is a certain trade off between having test scripts to the code and limiting what only needs to be essentially tested. Having said that, I would still prefer there is some level of test in my codes especially for those crucial processes, but for the others, I leave it to my users to give me feedback which the code won't simply be able to cover.