I feel that for most still living in a financially privileged society they are just not running what they already innately feel and experience (‘tightening of the belt’, mild increase in living expenses, the desire to keep accepting ‘cash only’, wage increases not keeping pace) far enough into the future.

‘What does Bitcoin do?’ Simply means they have not pieced together the inevitability of their political currency unit to worsen these lived experiences for generations to come.
It may not affect you here, now or even middle term. 
Your children, grand-children and great grand children will not be asking the same question.

It does not even need to be about Bitcoin.
The present is a gift (to be in a position to ask that question is a gift). What are you using it for so that you may gift more than survival to the future?