Fanaelialae
Legend
A gargantuan dragon doesn't lose the ability to fly or belch fire just because it's in an anti-magic zone. However, at least by the standards of the real world, those things certainly seem magical.Well, D&D does use clumsy mechanics like anti-magic zones that need to know whether you magic or not.
But, yes, you could entirely do away with such things, and just give all characters balanced abilities, leaving the specifics of how the player imagines them to the player. Other games that aren't D&D do that successfully.
I would be very much in support of all martials becoming increasingly more supernatural as they level, in a similar sense to dragons. Magical by the standards of the real world, but an accepted "that's just the way it works" element of the fantasy setting.