Those aunties were probably divided into two camps:
Those who did thread when they were younger, which more often than not will cause the hairs to get thicker in the areas that are sensitive to androgens - upper lip, chin, sideburns. The resulting problems such as ingrown hairs are no fun.
Those who developed a lot of facial after during menopause and most likely were at the point were they didn’t see the point fussing over it.
It would be nice if life were so simple.