The unique values renderer conveniently randomizes colors in a color scheme but when you you have more than about 10 values, you often have to start defining different shapes/symbols (circles, squares, triangles, etc). You can go in and define each shape manually but it can be tedious with a lot of values. It would be very cool to "randomize shapes" for point layers. Maybe even an additional "symbol scheme" along with the "color scheme" would make sense (basic shapes, pins, etc).
This is a Duplicate of https://community.esri.com/ideas/2325-random-symbols-for-unique-values Please visit that idea to up vote and provide use cases in the comments. Thank you!