Except many emotional and learning disabilities cannot be cured, whereas physical disabilities, like breaking your leg, get fixed relatively quickly. Even certain types of blindness can be cured, especially blindness as it is defined as a disability (for example, having severe sight loss can possibly be fixed with a transplant. Thus, according to you, it isn't a disability?). Certain types of deafness/hearing-loss can be cured as well. A disability is simply some action, capacity, or capability, or a condition that causes any of those three, that a person is not able to do that the average person is. This can be temporary or permanent. If I am to walk to work, but my legs will 90% of the time give out when walking, you wouldn't regard that as a disability...? Or if a person has severe trouble remembering things, but doesn't literally lose their ability to remember, they too -- according to you -- have no disability...?