I have just booked a half board meal plan where my 12 year old is now charged as an adult (he will be 12 and one month when we travel!) He has a tiny appetite and is also very fussy, so is best suited to the kids menus. My question is when dining with my husband and I can we use our adult vouchers and pay cash for him to have a kids menu, saving the adult voucher we would have used for him to use at another meal at another time? Does every person in a party need to use a voucher or can some use a voucher and some pay cash for a meal in a restaurant? Thanks!