Who are these people who don't appeal?

Of those who are assessed 'fit to work' by ATOS/DWP, about 40% appeal.

I can understand that some people can't cope with, or simply face, the process of appeal - I nearly bottled it myself. And there are probably a few who accept that the findings are correct (tho' I can't think why - else why did they apply in the first place?)

But still, 60% don't appeal??? Who are all these people who go through the assessment process (believe me, a humiliating and unpleasant experience) and then just drop out when they're rejected by a process which they must know is superficial.

I truly don't understand.