But on this topic, I definitely feel a "better late than never" approach is warranted. Fair warning, I will be spelling the word out several times so if you do not like to even read the word, I suggest you stop reading now.
Words are one of our most powerful tools. An arrangement of letters can be one of the most beautiful blessings or suddenly a terrible curse and the word "retard" has been poisoned over the years to fall into the category of curse. It is now an offensive label. I definitely don't support the use of it, much like I don't support the use of calling someone "autistic" instead I say that they "have autism".
But, I am around a lot of people who use the word "retard", "retarded" and "retardation" frequently. They don't use it with a trace of intended offence, they use it in a medical or psychological setting. My lecturers and tutors use it a lot (I am studying a bachelor of Psychological Science). Not just in terms of mental capacity, but also terms such as "psychomotor retardation" meaning what the word was originally intended to mean - a deficiency.
But, sadly, although in that safe setting we use it in the original meaning - it's been so twisted and changed to an offensive term that it isn't okay to use. I am thankful for lecturers who say things like: "the old term is 'mental retardation', but now we use the term 'intellectual impairment'". But who knows... One day the term intellectual impairment will probably become offensive. It probably already is offending someone. We can't get it perfect.
The problem with older lecturers using the term is that it then passes on to younger teachers and so on. The new DSM-V, which is the Diagnostic and Statistical Manual of Mental Illness was recently released - and the words "mental retardation" are not found in it. We are making progress.
I also find when working people from different countries and different cultures that they use the word more easily too. Am I in a position to be annoyed at them? Should I be trying to force them to conform to my culture for the brief period they are here? Why is my culture necessarily the correct one? Of course I should tell them that the word is considered offensive (I think it would be mean of me not to - especially when English is their second language), but here we hit an issue of cultural sensitivity. What if we go into another culture and a word we use easily here is offensive there? What if the word "disability" is dirty, and they have a different word? Then we are just getting into areas that are confusing...
I want it known that I support ending the word. It's not as simple sometimes as we would like it to be, I don't think. Sometimes the more we don't want a word to be used, the more power we give to it.
Just an example of how something gets a lot of power when it is forbidden. It is one of those psychological facts.
But: I don't use the word myself.
And that's where the change starts: with me.
And with you.
One person at a time, change will come. It mightn't be easy but in the wise words of Albus Dumbledore:
Soon, we must face the choice between what is right and what is easy.