Kernrechtsfrage
Whether the wife and children could join the appeal before the Federal Supreme Court
Extrahierter Entscheid
They could not participate because they had not been parties in the cantonal proceedings and had not shown they were denied an opportunity to participate below.
Extrahierte Begründung
Under Art. 89(1)(a) BGG, only parties to the prior proceedings or those denied participation may appeal; their inclusion would not alter the result.