Pros and Cons of closing jobs without approving labor

We are toying with the idea of allowing a job to be closed without having to approve labor first. What are some pros and cons you all can think of in this matter?

i get an error when trying to close a job that has “Un-approved”(not submitted) labor entry.
Also, you cannot enter labor against a job that is already closed.

There is a check box under site configuration that allows to close jobs without the managers approving time. (see below) You can add labor to a job that is closed, but it goes to manufacturing variance (or so my testing has shown).