Its the unintended problem of culturally different / socially 'lower class' names not being able to be shared because they are much more identifying.
How is a name like Princess, Olu, Olamide, Ife, Megan, Caleb, Isaiah, Gabriel (or Mason, Jaxxon, Denim, Ziggy, Merab, Macius, Kaspar, Niamh, Ali, Jalil, Marvellous, Priscilla, Lacie, Lily, Rhianna, Chloe, Madison/Maddisyn, Jan, Jamie, Sean, Ruby or thousands more) far more identifying? Some of them are unisex, some are male names in one location, female in others, some could be preferred names rather than full versions - when somebody who has been teaching for 20 years could have easily met over 8000 children in that time and worked in multiple schools in different locations, it's impossible to identify anybody.