There will always be some inconsistencies that consumers will need to be aware of. For example, Thundetbolt cables are limited in length, to about 0.5 m for pas

There will always be some inconsistencies that consumers will need to be aware of. For example, Thundetbolt cables are limited in length, to about 0.5 m for passive cables and 1 m for active cables (and those are very expensive). Meanwhile, a bog-standard charging cable can easily be several metres long. I doubt every cable will become an active Thunderbolt cable; that's simply not realistic or economical.