Nobody is faking these disorders. Many students have very real attention deficits when it comes to the material schools want them to pay attention to. Kids have very real hyperactivity that has no outlet when they are forced to sit in a classroom all day.
But that doesn’t mean they have a disorder. It just means they learn differently. And instead of telling them there is something wrong with them, they should be given the freedom to pursue alternative education styles.
Some kids have attention deficits. Some kids are hyperactive. But they do not have disorders. The school system has the disorder.
And it is the school system that needs changing, not the individuals being diagnosed.