A tag used when there is absolutely NO violence, threat of violence, or interpretation of violence in the image.
If there is danger, or threat of violence in the image, it does NOT qualify for this tag.
If there is implied violence in the image, it does not qualify for this tag.
If the image is part of a series that becomes violent, it does not qualify for this tag.
If the image would be considered NSFW due to 'other' factors, it does not qualify for this tag. Examples include: sex, excrement (shit), nudity (nude), and hentai.
If there is no violence in the image, but it has one of the above factors in it, use the non_violent tag instead.
In order to maintain the civility of this board, do NOT post any comments that could be considered as 'violent' or 'abuse-oriented' on these images. Ignoring that rule can potentially result in a BANNING.
In shorter terms (and straight from the admins mouth): Family_friendly is exactly what it means. Something you can show to your mother or daughter, or your friendly local ultra-conservative neighbor without the nagging question of "should they see this?"