Enable pins on Stepper driver, are they required?

[magicniner]

Not entirely sure why not as we trust it to move each axis correctly.

We assume it will and we hope it does and that is usually the case but the E-Stop is there purely because we should be aware that the worst can happen and the way to make sure everything is guaranteed stop if we want it to is to have the best failsafe we can devise, and that is not the systems which will have failed in the worst case scenario.