As for children within the country, the majority is multi-handicapped children, most of which cannot say at a normal home full time. So the adopted family basically become a place to put the children during the odd weekend or vacations. This isn't a family life, this is you helping the government at your own cost with no benefit to you. As harsh as that sounds, it's not something most people can do. It's incredibly taxing mentally, and you're still not getting your wish of a family.
That's not to say that there aren't children being adopted, but the waiting list is 10+ years. Most children are placed in foster care, which is very different.