Not every family is called to adopt. This must be said. A good number cannot do so (though every family, per James 1:27, is called by Christ to support a culture of care for orphans and widows). Those who can do so will know two things in great supply: great self-sacrifice, and tremendous joy. One need only think of where Cory and Shon would be outside of their loving home. Yes, they know their struggles at present, but they are clearly full of life, happy, and loved by their parents.
This is difficulty the world will not want, and glory the world cannot give.