How can this not be intended as a guilt trip?

I received an email from my mother, volunteering what she wants for her birthday.

She doesn’t want presents; she wants to my brother and myself to be sure to remember our grandmother and aunts and uncles on the major holidays, because they’ve done so much for us. To quote: “They expect it. I do not any longer. Funny…when they have been skipped once or twice you decide it is better to not have any expectations…then no disappointments.”