I know it isn't the point you are trying to make, but I can't think of a better way to re-enforce OP's point of "mediocrity will be even more available" than a mid-00s style, pop country song about eating hamburgers. "Toby Keith but with less to say" might be the gold standard of mediocrity.
example - "I only ate 3 cheeseburgers"
https://suno.com/song/c15f0251-fbac-4a30-a3e1-002dbc78cb79/
edit: yes, I agree this example amusingly reinforces the rest of what parent is saying