It was intended as a serious, albeit in your face, question. what I was hoping for was a serious answer. I don't expect you to drop anything
Let me introduce you to a term "TAB" Temporarily Able Bodied. It was created in recognition that physical ability is temporary, disability is the norm. I'm disabled because my hands don't work right. I'm also disabled because I need glasses. Minority or majority doesn't matter. My question was trying to provoke thought about what's going to happen to you when you become disabled. age-related ailments will steal your ability from you. But also do you want to leave the future to be a radical shift in career because your hands don't work or a shift in how you work?
As to the direction on what makes something accessible, there is a good 30 years worth of research on the subject in the library if people would only look. Is honestly simple concept of separation of functionality from presentation. If I need a word processor with a speech user interface, then I should be able to purchase a word processor and then purchase a user interface that does what I need. If a blind person needs a text-to-speech interface, then they should be able to purchase their own user interface. None of us should have to rely on adaptations or, as I like to call them, "brutal hacks" on the application.
Every two or three years we do hear about and disabilities. There was Nintendo thumb and now Blackberry thumb and other hand disorders from playing too many first-person shooter games. It's all right in front of us. we also have the issue of elderly, as you point out. I'm not worried as much about the elderly of today but, what happens when you hit 60 and you gradually discover you can't do anything. No texting, no video messages, no anything. Think about that future.
Also think about the implications of what our mobile devices are doing today. I've seen people advocate getting rid of voicemail because you can just send someone a text message. Or the only telephone you can use if you are blind is something that just makes calls and receives calls. These choices exclude people from the mainstream culture. If you are blind and cannot send a text message, you lose social connection. If you can't send a text message, you lose the ability to give someone a time delayed message the way of voicemail works. I do admit that it may be cheaper to warehouse disabled people but, it would be nice if we made a conscious decision.
And as a side note, I was not able to interleave my comments with your text because HTML is not friendly to the disabled.
I think there's a world market for about five computers. -- attr. Thomas J. Watson (Chairman of the Board, IBM), 1943