So I can't apply EA to Northeastern University if I ED to Penn?

Another point of confusion I have with UPenn’s new ED policy: why are students still allowed to apply EA to public schools? Why does Penn only target other private schools in its newer, more restrictive policy?

Let’s say, on any given year, 5-10 ED admits (say, 0.4% of the accepted pool) opt out and go to a private school with merit aid. In the same year, it’s conceivable that another handful go to a public school with merit aid. For either group, the actual number “breaking” the rules is miniscule.

Why does Penn care about the tiny fraction that opt out for private schools, and NOT the tiny fraction that opt out for public schools?

Even if only 1-2 students opt out for public schools, and a handful opt out for private schools, we’re talking about tiny, tiny numbers going to either public or private schools. Why punish the students who apply to private schools, and not those that apply to public schools?

Given the petty overkill of the current policy, and the puzzling allowance to exempt public schools from the restriction, I feel like I’m missing something here.