Similarly, if less vituperatively, some simply announce "I could never date a guy who lives with his mother!" immediately after, although I had not offered a date.
It is sometimes a struggle to be pleasant in these situations. I sometimes do want to ask if they would like to be abandoned by their children if they were older and fell upon hard times, but I restrain myself.
As @stronglikedan says in a comment in this thread, "most people suck." It's a bit broad, but it ain't wrong.
Right now it is merely a sad observation from the permanently sidelined.
From what I understand of your situation, you should be proud of what you're doing. You aren't living with your mother because you can't stand to leave the nest, you are taking care of your aging mother because she can't take care of herself (small assumption on my part).
If you were able to succinctly describe this in a way you are proud of, which shows that you are mature, responsible, and caring, I wonder if you'd get a better response.
I think the stereotype (as the article somewhat alludes to), is that young adults are living with their parents due to negative circumstances (economic, psychological, etc). It may be ignoring another underlying metric which is that as parents have children later in life, the parents are less able to care for themselves as the child reaches the age when most would be leaving the home.
In any case, there is no opportunity; I am not dating material for numerous other reasons and have accepted that.
At this point, I'd rather be alone the rest of my life than live a fake life passing tests.
I'm not sure of your age but I'm sure it'll be less of an issue as you grow older, and the dating pool around you also starts dealing with aging parents, and they understand the difficulties.
That sounds awful. How exactly do they go about this?