Why does my family have to overcomplicate things?

They all do it. One DD organised to come to us for Easter and asked if our other DD would be as well.
I asked the other and she said yes but they were planning to come this weekend which they have.
Last night she said they had been planning to ask us for Easter.
None of them seem to be able to get together and give everyone the same message and just take on board what is suggested to them.
DD and family have just disappeared up a fell? Not telling where and if I hadn't shouted supper after her,I wouldn't know when they were returning. Yet I do all the catering she just sits on her derriere.
I know exactly how you feel and I expect a lot of other grans do too. They do not plan and tell which we always thought was polite.
I do hope you get it all sorted out.

I must be the only mother on the planet who entertains her DD & SIL on Mother's Day. My DD just hates cooking and I love cooking so they come to me and SIL gets stuck in and says 'This is so yummy!'. Kids!