Best way to remove scrutiny is through laughter and showing that you aren’t bothered by it. When they ask say you don’t know yet. After that explain that you just aren’t sure yet and are debating between a few options. Laugh and go on how you know it’s such a last minute decision but you just aren’t sure yet. Be confident and continue the conversation so as to show nothing is bothering you. It will go right over their heads. Have a list of schools and reasons in your head prepared beforehand and just smile away.
Hope I helped.