Kernrechtsfrage
Whether L. could invoke a right to a residence permit based on family or private life
Extrahierter Entscheid
No admissible enforceable family-life claim remained, and the private-life argument did not show the exceptional intensity required for a residence right.
Extrahierte Begründung
L. was already an adult, no special dependence on his father was shown, and his integration in Switzerland was not exceptional; ordinary social and school ties were insufficient.