Kernrechtsfrage
Whether a hypothetical Swiss income should be imputed to the father when modifying child support.
Extrahierter Entscheid
Yes. The cantonal court wrongly refused in principle to consider a Swiss-level hypothetical income and must re-examine the father's effective earning capacity in Switzerland.
Extrahierte Begründung
By leaving Switzerland shortly after dismissal without serious job searches and while still owing maintenance, the father did not fully exhaust his earning capacity. A parent of a minor must maximize work capacity; voluntary relocation causing a large income drop cannot prejudice the child if Swiss income remains realistically attainable.