Honestly it depends where you interview. If I interviewed in top XX, then I would. If I interviewed in a smaller rural school - not. It’s like with s wedding - you don’t want to look fancier than a bride. When I interviewed in more casual southern schools, my hair was curly (female), and I wore a colorful blouse with my very traditional skirt black suit. In the north-eastern schools I straightened my hair , wore pants , and my blouse was single color neutral . So go off the school and their culture. If I interviewed in Harvard or Mayo , for example , I would have worn the best , most professional suit, sleek straight hair, minimum makeup , expensive And minimalistic accessories (gold small earrings, expensive watch).