Now you have to ask . . . On a conscious level they probably didn't. The soul was looking for a way not to work and to get taken care of. This was the choice it made. Much of this has to do with a dysfunctional soul who is self sabotaging.
Some souls sabotage because they feel that they are unworthy of having the abundance.
I guess that's why souls are constantly daeling with healing their issues. Now let's get to illnesses . . . I am certain that ALL diseases can be prevented if we do not allow them to enter our bodies. I have learned how to protect and manifest without damage to my physical body. I have had many gay clients over the years.