If Aruba is on your family's horizon, start saving your Marriott, IHG, Hilton or Hyatt points. This gives you many different options to choose from when you want to redeem points.
Most Caribbean destinations have chain hotels from just one or two loyalty programs (if any), where Aruba includes properties from four different major hotel programs. In addition to being kid-friendly, there are also many opportunities to use your hotel points from many different programs.
The beach in Aruba really is this perfect for kids.