It's a healthy practice of mindfulness to expect that people can and will shift in their thinking. It is far more useful than the self-limiting assumption that they cannot and will not. It is being curious if and how people's thinking and curiosity may be shifting and changing. Actively inquiring opens possibilitt space in which everyone benefits.
We can cultivate this practice by first noticing what about our thinking do we think is open to shifting, evolving and changing.