Technolithic

The introduction of this article makes reference to a couple of papers (e.g. https://doi.org/10.1038/s41598-017-16827-y ) that handedness is observable in utero but cautions small sample sizes for these studies.

> We aren't in emergency service or work in an environment where lives are on the line.

Obviously these jobs have occasional acute long work times but I'd say that jobs where lives are on the line is precisely where society doesn't want chronically sleep deprived workers.