You hear this boundary advice all the time. While I like the intention, here's why it rubs me the wrong way.
I think of “no is a complete sentence” as a permission slip of sorts for a lot of people. Thank you for always sharing that being direct can still be kind. Too many of us wait until we’re at the red level before responding and knowing that we can be up front relieves the pressure valve, especially around the holidays.
I’m cackling about “no” to those examples where more nuanced is needed. That would sure be one way to not get invited to family holidays this year.