"There's nothing on my phone I'd be ashamed to have exposed."
That's the wrong question, though. (Despite the quote above.) The question is, do you have anything on your phone that someday a government may decide is a reason to do something bad to you?
The answer is always yes for two reasons: One, you can't know the future and what it will hold, for instance governments can make laws explicitly for the purpose of "getting" people, and two, the possible set of future governments pretty much has no safe behavior intersection.
I thought the point of your earlier comment was that you wanted a way to load different profiles. Otherwise, factory reset seems like a legitimate solution.
That's the wrong question, though. (Despite the quote above.) The question is, do you have anything on your phone that someday a government may decide is a reason to do something bad to you?
The answer is always yes for two reasons: One, you can't know the future and what it will hold, for instance governments can make laws explicitly for the purpose of "getting" people, and two, the possible set of future governments pretty much has no safe behavior intersection.