All menus (word, Excel), and likely any program you purchase use the
built-in menus.
So, you can certainly change the font used in menus...but it would be for
all of windows. (so, you can let users do this this...but I certainly would
shoot someone who changed MY windows settings).
To change the menu fronts for all of windows, you can go:
right click anywhere on the desktop->properties
Appearance Tab
Click on advanced button
There is a drop down (combo) box..and you can select "menu" from that
list...and then select the font.
However, this feature has nothing to do with ms-access.