It means they live long enough to reach a point where stairs are no longer possible for them. Not sure I agree necessarily but the point makes sense - live to old age. It serves the elderly, of which we all want to be one (eventually).
This is why it's so important for elderly people to prevent sarcopenia by eating a high protein diet and engaging in frequent, hard resistance training. Many of them just let themselves waste away but in most cases this can be prevented.
If that's the point I'll disagree. My 84 year old mother is still climbing the stairs. If we're lucky we'll never need an elevator, though we might like one for the sake of convenience.
That depends. I have known some where they can't do anything so what is the point. However I know many who are no longer able to walk well but they can still do most of their hobbies and so overall still enjoy life.
That's Axios' standard format and concept: Their service is highly efficient news, and it's formatted - with that structure, bullet points, etc. - to facilitate that.
What does this saying mean?
And what's with the weird article formatting? Is it targeted at people with short attention spans or is it some kind of AI garbage?