But one can add checks after the design/features settle; it's not all or nothing. Using the mechanic analogy, if you are requesting a custom car, the mechanic c

But one can add checks after the design/features settle; it's not all or nothing. Using the mechanic analogy, if you are requesting a custom car, the mechanic can shape the look and feel first, and then verify everything once you made up your mind. Most CRUD (such as tracking applications) is just marshaling attributes around and about, not really doing much math on them. Forced type checks can be repetitive busy work and hogs screen real-estate.