Ehm.....
Very busy commercial traffic airports normally deny entrance to skids helicopters due to FOD that could be trowed in the direction of parked aircrafts by the main rotor wash.
This is true for NON Hems helicopters.
On the other hand, multi purpose helicopters with wheels could be equipped with bear paw mobile skids for winter/rainy season, in this case gear retraction would be impossible.
Landing lights are deployable regardless of landing gear position.