In terms of expressing the linguistic point being made, it seems like a fine analogy.
The point is, apparently, that "ask" is a euphemism for something that you are effectively obligated to do.
You're reading much too far into it.
The point is, apparently, that "ask" is a euphemism for something that you are effectively obligated to do.
You're reading much too far into it.
This is especially true when the dialogue is between two people (or entities) of different social status or power, but it's also pretty rude to not oblige when you are close to the person.
The only time it is truly voluntary is when there is no relationship and nothing to lose by declining.