No vacations? Welcome to my world. No one ever said you were entitled to vacations in the middle of a project...lol
Many of us live with this, and if and when we do take time off, we plan for it. My daughter might go to Nationals in July, I am already working on freeing my schedule and planning my projects so I can take the time off IF she wins at State, twice, between now and then. Not to mention fundraisers for the team so their family can travel, other family concerns, training, etc.
I have no one to replace me and what I do. Guess it is the same when you decide to be a caregiver or grow your own. Might be limited to day trips or between crop trips.
Dr. Bob