Um, yes, we can assume as a group kids at highly selective T25 schools are smarter than the average college student. That’s part of the definition of highly selective-smarter than average.
That’s not what the post said. You are arguing against a claim that does not exist.
More kids at T25 schools will continue their education beyond a bachelor’s degree than the average college student. That also opens up different majors as a result
You might be surprised about the relative portion of grads who pursue further degrees. As an arbitrary example, the first 2 colleges I compared were UConn and Yale. 33% of 2023 UConn grads say they plan on pursuing further degrees beyond their bachelor’s. 18% of 2022 Yale grads say they plan on pursuing further degrees beyond their bachelor’s – roughly half the rate of UConn. If I drop down in selectivity to UKentucky (95% admit rate), then it increases to 37% of grads continuing education beyond a bachelor’s – more than double Yale.
I don’t plan to do an extensive review, as it’s not especially related to this thread. However, the point is many large public colleges have a larger portion of students continuing education than various USNWR T25 colleges.