You'd look that way too, sun/weather exposure, perhaps tooth/gum loss for no access to medical care, especially dental. Perhaps lived a lifetime of trauma, as a kid, then a wife.

Probably because she’s got to walk 12-24 miles (unclear if 12mi one way or round trip) and also work six days a week and probably has for many years. That takes a toll on the body, not to mention she’s probably missing out on fully homemade meals because she’s got no time to cook, so she’s ingesting more salt and sugar and microplastics (the added fat is probably balanced out by the walking, but the rest isn’t necessarily) as well as spending more time in the sun, wind, and exposed to exhaust particles and other traffic pollution than most people her age.

not too far from modern suburbia

I think it's mostly the haircut and unflattering angle.