First of all, this is a good prerequisite. Especially with regard to the menu structure.
However, this may become obsolete in the not-too-distant future, because other input technologies may be introduced. Therefore, one could try to implement both from the outset. Mobile menus are already integrated into most community pages in such a way that they automatically adapt to the size of the screen.
Take a look at my (just recently installed, therefore still without content) page at 2254.humaniac.eu where you can see it well. If you reduce the size of the browser window, the menu changes from a certain size and is automatically switched to Mobile.