Yale legacy

How come on the Yale common app it only lists “Have any of your grandparents ever attended Yale University?” and never asks about parents. I thought this was rather odd. Luckily my grandfather attended there but I thought parent legacy was much more valuable.

Because on your parent information stuff it asks you where your parents attended college.

^^ Yale, and other colleges. learn about where your parents attended college – thereby legacy status – when you complete the FAMILY section of the COMMON APPLICATION. When you section EDUCATION LEVEL, GRADUATED FROM A COLLEGE/UNIVERSITY, a student is prompted to name the institution their parents graduated from.