Children and teenagers under 18 do not pay an entrance fee in many archaeological sites and museums throughout Campania. For this reason, there is no special under 18 Pass. As regards transport, children under 6 travel free.
At the moment, due to coronovirus restrictions, pubblic transport is NOT included in any pass.
Yes, the Naples Pass 7 days Museums includes all tourist sites and museums in Campania, the 3 days include Museums of Naples City.