I am guessing this is a question as to the suitability of family snaps. The general rule is the people should be the secondary element of the photo rather than the main feature, and posed shots (it can be worked out in most cases) are more suitable to other photo sites as not related to the area they are in. Having said that a discussion thread has refined this recently, and the general conclusion was if there are local events or occupations which are taken spontaneously then a person featuring as the main subject can be included although without a reasonable amount of background would normally be added as a supplemental*. But for straightforward posed family snaps then the only circumstance they would be suitable is if they were a small part of the whole scene, and as with most the older the photo the more flexible the criteria.
*From 11 May 2016 the Supplemental classification will be replaced by Image Type Tags: see http://www.geograph.org.uk/article/Image-Type-Tags-update