Social media settings change on a regular basis. They are sometimes complex and confusing. I have a Facebook account that I rarely use. If you take a look, I have a profile picture that I uploaded back in 2012 from a trip that I took. I do not have time to waste to go through every option to say that I want this group to view this, and not to view that. As far as I am aware, my profile ‘should’ be public.
The moral of this brief rant is, if you do not want your parents/family/spouse or boss to see if, DO NOT POST IT!
Or as one of my fellow colleagues has done, do not have an account to begin with.