My first thought also. You don’t get anywhere near machinery with long hair, been that way for decades.
Yep, no long hair, no untucked shirts, no jewelry. Very basic safety stuff but I’d be willing to bet someone was afraid to tell her because that would have been ....... racist
black privilege
Or loose cuffs, or ties, or anything else hanging off the body or clothes, and keep the fingermitten out the moving parts.