One of the mistakes I made during this process was hounding my son about this same thing. Years later he told me it was more stressful then it needed to be. Mostly due to the parents. So, walk away and revisit it. Stop talking about college and anything associated with it. Then suggest a pro /con sheet. This can actually be really helpful.
Our kids are not us. I know, they should be right? Lol… He knows the decision date. A few days prior if he didn’t bring it up then slowly bring it up. We also told all of our friends etc do not talk to him about college. Because the very first thing out of their mouths is “So, where are you going to college”.