Desk research against primary sources. Figures are traced to the issuing UAE authority and linked on the page.
The family-friendliness case rests less on any one attraction and more on the density of options within a small area, so a single hotel base near the coast can put a waterpark, a themed attraction and a beach day within a short taxi ride of each other rather than requiring a long transfer for each activity. Children's menus and family-sized rooms are the norm rather than something you need to seek out specifically.
The seasonal calendar shapes a family itinerary more than an adults-only one, because children tolerate the heat far worse and the usable outdoor window shrinks hardest for them during the hottest months. Structure the day around that window rather than around opening hours: outdoor time early or late, indoor attractions and pools through the middle of the day, and accept that a summer trip is an indoor-attraction trip by design, not by compromise.