The top menus are governed by your OS so Adobe can't help you there. But you are not the first one, the past couple of years, to inquire about this. It seems the sales of high-resolution screens are getting the better of Adobe's "just use the default sizes" approach.
Photoshop, another branch of this so-called "Suite", DOES offer three different sizes for the UI font (I've personally nicknamed these "small", "smaller", and "tiny", by the way, but at least the Photoshop programmers are trying).
Fill out a Request form here: https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform