Cleanliness matters. Hygiene protects health and shows respect for yourself and others. Washing your hands and caring for your nails regularly are essential habits.
But respect for people matters even more.
Before labeling someone based on what's under their fingernails, pause and ask:
Are you seeing negligence or are you seeing hard work?
Sometimes what looks dirty is simply evidence of effort.
And sometimes, the cleanest thing you can do is refrain from judging.