^^
I strongly suspect that the OOS and int’ls that attend UCs are affluent.
The int’ls get ZERO aid.
The OOS students have to pay $23k + EFC…so a low EFC can’t pay the $23k…and the higher EFC families can’t pay their EFC plus $23k (up to COA). Typically families find their EFCs hard to meet, so paying an add’l $23k (along with full loans) would really mean that only those whose EFCs are close to $40k can afford to go to a UC.
Besides…except for the top 3 UCs, I don’t think the other UCs have very many OOS students. As for the top 3, I don’t know what the OOS (non-int’ls) numbers are. Are they split out?