I think u do need self catering with children
for my sis wedding in Mallaga I booked an apt on the grounds of the hotel but my sis being bridie n all that booked a room in the hotel but was sorry in the end coz she & her son spent more time in my apt because of fridge for milk & yogurts etc (not that I cooked) but ment water was always cold & the kids had their usual bits in the fridge