I had a neighbor take care of my chickens while I went away. Not my next door neighbor who has chickens of her own, someone else.
That someone else is not able to care for my chickens any longer, and I will not have the next door neighbor do it, as our management styles are VERY different.
So, I don't go on vacation. I didn't go to a friend's wedding in Colorado, I didn't go visit my husband's family, or a friend who has cancer.
I would not have a moment's peace or rest if the next door neighbor were caring for my chickens, so going away would not be a vacation at all for me. It would be a stress-filled time of angst. I can't go the route of "leave out enough water/food for the entire time I'm gone," as I do not ever leave food or water out over night, as it attracts mice.
Might I someday find another chicken sitter? Sure. But if not, I will be content to stay home with my chickens.
When I got chickens, I understood that this might happen, and I am at peace with it. It's what I signed up for when I brought home my little fluffy chicks. Their well being is my responsibility.