I'm fully retired for the time being, and hopefully forever , so no holiday employment for poor little me. When I worked in retail sales I pulled many a Xmas Eve shift. For some reason they didn't schedule me that day my last several years on the job. I didn't ask to be off. I suspect they wanted younger workers on the floor who were faster assisting/herding customers and at the register. I suspect that's why I also didn't work Black-Friday those last few years, though I was a solid Black Friday opener for some years prior.
I was lucky in that the place I worked closed late afternoon Xmas Eve and didn't open Xmas Day. (Don't know if they maintain that policy anymore.) Heh, I remember the first time our store opened Xmas Eve. The boss didn't know what to expect so kept a more or less skeleton crew. We were swamped from open to close!!!!! Next year she hired and scheduled a bunch of seasonal help for that day. The store was dead. The three or so hours I was there we had maybe five customers total. I got sent home early, along with a number of others. Mostly from year three on it was a super busy day up until the second year of the "Great Recession", when things slowed down somewhat.
hmm... I might gotten the above backwards...a benefit of senility. It might have been that we were totally dead that first Xmas Eve so that the boss scheduled only a skeleton crew NEXT year, when we were swamped. Then again, my first thought might be the correct one.