Using terms like these which contain no bias negative connotations or prejudice is an example of being politically correct or PC .This has become especially important in Noth America in recent years and includes other terms such as physically challenged (instead of handiceapped) and Asian- American (instead of Oriental).It is wise to be aware of the social climate because sometimes people may be offended at the use of the older terms,which do not include them.Have you heard of any other terms like these?