I am always in favour of explaining the effects of a (chosen) licenses, but this feature request is not about license advocacy, but more porting the capability of chosing a prefered license to the app. iNaturalist supports this on the website version. It would be so convenient if we would have the same freedom to change licenses on mobile devices.
Account-wide settings for photo and observation licenses can be changed in the newer mobile app (only officially released on iOS still), but not individual ones yet.