The first felony trial I tried as a lawyer, I argued it wasn't possible for the victim to have chosen my defendant from a photo lineup. We had the photos, and I couldn't have done it LOOKING at the photos AND her. She was African-American (before the term) and so were two of the twelve people on the jury. When I got home, Mike told me, "If your defense is 'They all look alike' don't put them on the jury."
I really believe I have a mild case of that prosopagnosia and that causes me to have a really tough time learning names. But maybe that's an excuse. But this isn't even about people. I can't tell my grandcats apart. Now, I also have an abiding fear I won't be able to tell Jack and Justin apart, but that's beside the point, too. But look at these cats. I dare you to pick out the three cats! There are only three, but multiple pictures of some.