Guests can now choose the total number of guests, including the number of children with a discount.
The discount is automatically deducted from the total price of the accommodation.
The percentage discount is calculated from the relative share of the child in the price of accommodation (ie for 3 accommodated persons from one third of the price of accommodation).
The reservation system also ensures that there is always at least 1 adult in the room.
That's all, you have just successfully set up a children's discount :)