Kernrechtsfrage
Whether the complaint was admissible for the adult son under family reunification or constitutional complaint rules.
Extrahierter Entscheid
The complaint was inadmissible for the son because he was already over 18 and had no special dependency; subsidiary constitutional complaint was also unavailable for lack of standing.
Extrahierte Begründung
The relevant age is the date of the Federal Court judgment. Without a special dependency relationship, Art. 8 ECHR and Art. 13 BV no longer support reunification for an adult child, and the son lacked substantive standing for a constitutional complaint.