Toolbars for the stuff you don't use frequently and therefore don't know the keyboard shortcuts, but still need those functions now and than. But menus? Nobody

Toolbars for the stuff you don't use frequently and therefore don't know the keyboard shortcuts, but still need those functions now and than. But menus? Nobody would need them if command palettes would have some discoverable hierarchic structure to them. That's the last missing part to make command palettes "perfect".