The term cisgender describes a type of gender identity where an individual’s experience of their own gender matches the sex they were assigned at birth. (Wikipedia)
Identifying with the sex you’re assigned at birth is a privilege. You don’t have to worry about bathrooms, people addressing you with the wrong name, being refused medical treatment, etc. if you are in fact cisgender. It is easier for you to integrate into and be accepted within society.
The above link lists such privileges that those who are cisgender have. Its a very interesting read, it makes you realize, if you are cisgendered, just how much privilege you do have in society. I for one didn’t realize the many things I take for granted as I was reading over the list.
We as a society need to get to a place where all genders, sexual orientations, races, etc. are treated and integrated the same way. There’s no reason that I as a cisgender individual should be treated any different than a transgender individual, we are both people and both valuable members of society. Gender is not a binary, gender is not the sex you’re born with, it does not determine what sexual orientation you “should” be. Being anything other than cisgender does not mean you are dysfunctional-there is nothing wrong with you. One of the points in the aforemetioned link is that those who are cisgender are not denoted within the DSM IV. Transgender people should not be there either. It is not a sickness. It is society that is making it one and making it hard for people to feel comfortable being who they are.
I think it’s important for individuals to realize the privilege they have so that they can be both aware of it and actively seek to make it so that this privilege no longer persists.