Question juridique clé
Whether the Zurich authorities arbitrarily denied stepchild status under § 23 Abs. 1 lit. b ESchG
Solution extraite
The interpretation was not arbitrary; only children of the spouse in a legal child relationship qualify as stepchildren for this tariff provision.
Motifs extraits
The tariff distinguishes mainly by degree of kinship and uses stepchild/stepfather privilege as a narrow exception based on presumed closeness, not on affinity alone. There was no settled practice requiring a broader reading.