It’s probably mostly due to “old age” but if that’s the case then I have to assume by the time I reach my 60’s,70’s I will have absolutely zilch ability to remember people’s names! Maybe there is some chemical imbalance or something like that going on that is getting worse as I grow older.
I never had much of a memory when it came to remembering History or Geography in school (which is likely why I hated those subjects with a passion!). And now that I am in my 50’s (early 50’s that is), I find I cannot remember names at all, not only the new ones that I recently get introduced to but I find myself searching in vain for names from my child/teen/early adult time frames. It gets exasperating really! Very annoying and very embarrassing too!