>If you really can't remember all the details of people that you want to remember, you can always write those details on your phone or trusty Rolodex after you meet them and then check them out before you meet them again if you must.

i do not see any practical difference between the hypothetical device the parent proposes and this, except that your suggestion is more cumbersome. you're just "outsourcing your mind" to paper or whatever.

(i will note that i agree with your general point. i try to make a concerted effort to remember those details, rather than rely on any type of note-taking)