Yes, I often have the same experience. I think that many people are so self-centered in their thinking that they cannot understand that I define the appropriate limits of my daughter's behavior by the values I want her to learn and embody rather than by the tolerance of others.
Exactly. We have the grandparents on the same page, but there's not much you can do about strangers except tell them after the fact that no, you would rather your child understood the importance of XYZ.