> I think piano needs its own version of the guitar tab to be more approachable
But then you end up with the same problem you get on guitar: beginners use tab as a crutch and don't develop skills as readily as they should once they're over the beginner hump.
This is the hardest part of learning and teaching music. On one hand, it's hard to stay motivated when you're mangling Twinkle Twinkle Little Star, but almost any shortcut you take in this stage will retard your growth later...
But then you end up with the same problem you get on guitar: beginners use tab as a crutch and don't develop skills as readily as they should once they're over the beginner hump.