Key legal question
Whether the constitutional complaint was admissible despite the failure to exhaust cantonal remedies
Extracted holding
No; the children had not themselves pursued the available cantonal appeal against the guardian appointment, so the complaint was inadmissible.
Extracted reasoning
Under Art. 86 OG, the cantonal instance chain must be exhausted personally. The children did not challenge the guardianship authority's decision themselves and were not prevented from doing so.