Or if we are having a parent meeting at school for organizing a class event, and one parent pops in with, "I cannot do the petting zoo because my doctor hands are too delicate and anyway, I can't do it that day because I have to perform a surgery scheduled for that time!" instead of, "ok, Jane will take face painting, and Bob will take ball toss. Now let's talk about snack ideas."
Tossing in a title just for the purpose of what most would read as pompousness is annoying. I would much rather work a school event with "Christie, John's mom who is making gluten free brownies and likes horses, so much more than working with Doctor Jones who will correct every group rotation that stops by the sack races.
"Hi, Susie's mom!"
"Actually, it is Dr. Jones."
"oh, can I just take my turn now?"
when I work at a school, in front of the students we call each other Mrs. Brown, Miss Smith, Dr. Jones. When it is alone in the teacher workroom or after school, we are Janice, Blythe, and Robert.
If Robert insisted we call him Dr. Jones, we would not be offering to share workroom treats with him so much, because friends tend to call each other by first names, not titles.
A title is a sign of respect, and keeps a professional distance. if someone insists on tossing up that barrier, in non-professional settings, so be it. (pool parties, grocery store, school kid event, walking the dog) But understand that (general) you may be missing out on some great potential friendships and learning opportunities.
Speaking of schools, there may be a newish teacher slowly walking a path of PD--
she comes in late daily, and the other teachers notice. She tends to leave early, also. She does not attend special events, even though she has been asked to. All teachers share space, yet she has demanded that her room be kept empty even after school when co-curricular events and tutoring occur all over campus. she has had other teachers change their schedules to accommodate her. her clothing is a bit 'sexy' in nature, at this conservative school. her workload has been cut a fair bit, but she still appears very stressed. She was chosen as a darling candidate for this position, so it may still take a while for her PD steps to be fully recognized.