It actually seems fairly intuitive to view Ä as a cheap knockoff of A whereas U and W are independent forms.
That would be wrong -- as the name suggests, W derives from U, similarly to how G, J, R, and U derive from C, I, P, and V. But it shouldn't be hard to see the intuition behind the idea that s is a "natural" letter and š is an unnatural modification.
That would be wrong -- as the name suggests, W derives from U, similarly to how G, J, R, and U derive from C, I, P, and V. But it shouldn't be hard to see the intuition behind the idea that s is a "natural" letter and š is an unnatural modification.