Some people are fully able bodied and so can be expected to earn a living on their own at any given point in time. However, some people are not going to end up being nearly as lucky in some way, shape or form. A big part of the reason what that is the case has to do with the fact that there are many individuals out there who are struggling with disabilities, and these people need to be able to file an SSD claim so that they can get benefits from their government.
The process by which you can end up filing some kind of SSD claim can be a little complicated though. One tip that we can give you for getting a claim approved for SSD is to make sure that you have all of the evidence for your disability. Even if the evidence has not been explicitly requested by someone or the other who might be in a position of power, this does not change the fact that it might be asked for at some point or another and if you do not have it on hand this can go against any claims to legitimacy that you might be trying to make.
Pictorial evidence as well as recommendations from a doctor can all be crucial to your quest for getting the benefits that you require. These benefits are necessary for you to be able to afford rent, groceries and a myriad other expenses after all, so being able to get them will be a big help to you. There are plenty of professionals who can give you further advice as well if you do a bit of research to find them.