Sometimes I think how nicely a person is groomed can depend on the job/jobs they've had. The military has Personnel Inspection Day, like I did in the Navy. Everything had better be perfect or the sailor will get Extra-Duty. Extra-Duty is 2 hours of extra work when everyone else quits at 5PM. I'd have to say "been there, done that" to Extra-Duty, when I was in. I remember, one time onboard ship, it was Personnel Inspection Day and the sunlight brought up some "peach fuzz" that I didn't see on my face. Captain seen it and I got awarded Extra-Duty for a night.
In civilian life, a Auto Mechanic, CNC Machine Operator, Drill Press Operator, Construction Worker or any other dirty/grimy job can constitute how a person grooms themselves. I've been to the home of a Auto Mechanic and it really seems like no matter how much soap he used, he just couldn't get all the dirt and grease off.
OTOH, Office Personnel, Inside/Outside Sales, Managers and Supervisors and some other like jobs, all seem to stay very clean and suitable at work and at home.