I have a parent with a PhD and they dislike being introduced as
"Dr. Nutella" outside of their workplace because people instantly assume that they're a medical doctor. They put it this way: "If you're on a plane and they ask if there is a doctor on board are you going to raise your hand? If so, you're a doctor. If not, don't introduce yourself as one."
However, I'm all for people with anthropology, engineering, English lit, chemistry, theology, underwater basket-weaving, pancake-making, etc. PhDs touting their hard-earned Dr. I don't really care about having a title, though it's kind of nice for us gals to not have to deal with the Miss/Ms/Mrs debacle. Dr. Nutella sounds a lot better than Ms. Nutella.
Nevertheless, a family acquaintance went through
this program and
insists on being called "Doctor ___."

"
The DSS Program is a three-year program, with students meeting one weekend a month for nine months each year." Ooooohkay.