[SamuelMcF]

Wouldn't surprise me much.  I don't know that many people who attended USC, at least not really well.  I know one person who started a dental tools company at the age of 19 and did very well, USC grad.  All three of my stepsister's children attended USC. I know their mother had  debilitating dyscalculia (all the women on that side of the family do), presumably her kids didn't inherit it.  And one of the kids on my son's volleyball team went to USC.  The only thing the parents had in common was that they were stinkin' rich.

My HS (if I said "exclusive, filthy rich LA private school" you can probably guess which one) fed ~90% of every graduating class into 3 "buckets" of schools:
- Stanford/Ivies/MIT/CalTech
- Northwestern/Duke/UChicago/WashU St. Louis
- USC/NYU/Michigan

Can confirm the third bucket fit the bill of "parents were stinkin' rich" for almost every kid, the general exception being engineering-focused kids who did well in STEM classes but didn't do much extracurricular-wise beyond maybe playing a sport or an instrument (thus competing for limited School of Engineering spots with thousands of other just-as-qualified kids who did exactly the same thing or more).

No one went to liberal arts colleges???

Liberal arts colleges and random assorted state schools pretty much rounded out the other 10%. I remember there would only be a few every year going to Williams/Amherst/Swarthmore/Pomona/Reed, and maybe a couple girls would go to the well-known women's colleges like Sarah Lawrence or Wellesley, but a very popular choice for those who wanted the small liberal arts college vibe was Kenyon. (We had a couple extremely well-liked teachers in the English and drama departments who attended Kenyon.)

[SamuelMcF]

Wouldn't surprise me much.  I don't know that many people who attended USC, at least not really well.  I know one person who started a dental tools company at the age of 19 and did very well, USC grad.  All three of my stepsister's children attended USC. I know their mother had  debilitating dyscalculia (all the women on that side of the family do), presumably her kids didn't inherit it.  And one of the kids on my son's volleyball team went to USC.  The only thing the parents had in common was that they were stinkin' rich.

My HS (if I said "exclusive, filthy rich LA private school" you can probably guess which one) fed ~90% of every graduating class into 3 "buckets" of schools:
- Stanford/Ivies/MIT/CalTech
- Northwestern/Duke/UChicago/WashU St. Louis
- USC/NYU/Michigan

Can confirm the third bucket fit the bill of "parents were stinkin' rich" for almost every kid, the general exception being engineering-focused kids who did well in STEM classes but didn't do much extracurricular-wise beyond maybe playing a sport or an instrument (thus competing for limited School of Engineering spots with thousands of other just-as-qualified kids who did exactly the same thing or more).

No one went to liberal arts colleges???

Liberal arts colleges and random assorted state schools pretty much rounded out the other 10%. I remember there would only be a few every year going to Williams/Amherst/Swarthmore/Pomona/Reed, and maybe a couple girls would go to the well-known women's colleges like Sarah Lawrence or Wellesley, but a very popular choice for those who wanted the small liberal arts college vibe was Kenyon. (We had a couple extremely well-liked teachers in the English and drama departments who attended Kenyon.)