Telling a friend you want to cancel is hard, and depressing, and so you oftentimes go just to not bail on them. And hate it.
But what if your friend is feeling the same way? What if you both want to cancel, but neither of you wants to hurt the other person.
Well, with something like this, you can bail without letting them down; they only know you wanted to bail -if they also want to bail-. That's the key bit.