Question juridique clé
Whether the claimant had a right to a helplessness allowance, and from which date.
Solution extraite
The claimant was not helpless in any of the six relevant daily life activities and therefore had no entitlement to a helplessness allowance.
Motifs extraits
The Federal Supreme Court upheld the cantonal court's assessment of the home assessment report and medical evidence, finding no obvious factual error or procedural defect. The claimant's criticisms did not undermine the evaluation, and later health developments lay outside the relevant period.