Leslie Hawthorn's recent OSCON keynote is a short, accessible, introduction to the notion of learning to see defaults that work in your favour, rather than assuming that your own experience is typical of everyone.
In particular, if you're ever tempted to utter phrases like, "I don't see colour" or "I don't see gender", then my immediate question is: "If you don't see them, how are you ever going to notice if they, coincidentally I'm sure, happen to be always be the same as yours?"