Claude Opus's Fermi estimate of the number of 18 year olds, making at least $100,000 a year, in California, with children, to be about 8 people. Not 8 thousand, not 8 hundred. Eight. Single digit. In a state of 40 million people.
I guarantee you there are more than that just from trust funders/people working for their parents and religious enough to start families early.
Stop pasting LLM slop here.