This is something I'd like to push. Family photos are important to families. Having said that, remember that families age, and people will not always recognize the individuals in any given photo. It's important to have documentation attached to the images so people a century or two from now will know WhoWhatWnyWhereWhen.
You should consider attaching documentation to your photos. The primary documentation should be the names of the people in the photo, but sometimes other documentation is important for context.
I have a set of writeups (with examples) on family photo documentation at
https://www.uglyhedgehog.com/user-page?upnum=2991
The real problem here is attaching documentation in such a way that it cannot be separated from the photo. Remember that you can put a lot of information into metadata, but (1) not everyone knows what metadata are; and (2) metadata do not survive printing. My solution is to add text to the images. Admittedly, that impacts the artistic quality of the image, but artistry is not always what family photos are about.