Question juridique clé
Whether the move from minor to adult status required a revision under Art. 17(2) ATSG for the helplessness allowance
Solution extraite
The court did not finally decide whether age majority alone creates a new insurance case; the appeal failed because the cantonal finding of changed circumstances and entitlement only to a light-degree allowance was not unlawful.
Motifs extraits
The court noted the historical treatment of helplessness for minors and the 4th IV revision, but found it unnecessary to resolve the abstract revision question because the concrete assessment of the relevant daily activities showed no medium-degree helplessness.