>> I find it a bit strange that the author leads with the example of wanting to "blind cancel", and then suggests that maturity and communication is the real answer to that scenario.
I don't think that's the _only_ solution the author is suggesting. She also goes on to mention "...self-knowledge: Will you be in the mood next week?". In other words, don't make plans if you're not confident you won't break them. Similar to the idea of "hell yes or no" as a response to social requests. If you don't have a strong sense for stuff you like/don't like doing and how you'll feel about social situations in the future that's going to be tough.
I don't think that's the _only_ solution the author is suggesting. She also goes on to mention "...self-knowledge: Will you be in the mood next week?". In other words, don't make plans if you're not confident you won't break them. Similar to the idea of "hell yes or no" as a response to social requests. If you don't have a strong sense for stuff you like/don't like doing and how you'll feel about social situations in the future that's going to be tough.