I am one of the people who have turned down a wheelchair that was offered,
but I have had to cancel plans after standing or walking too long---it's not always what
it looks like.
My husband is doing well, after surgery, and doesn't
appear to need one, but put him in that line for too long and he's limping again.
Maybe we should have a Senior line--LOL

There was a young man on our flight who literally jumped in and out of his window seat---but, I guess everyone feels if it's being done, they will join the crowd.
It's along the lines of putting your seat back on the plane.....