My child has left school now but I would send her in on Christmas Day because we are atheist.
There's long been the argument that public transport in London should operate on Christmas Day so that people can visit family more easily.
I work shifts and Christmas Day is the only guaranteed day off. My public holidays are banked and I only have one weekend off in six. So, even if Christmas was moved to the weekend I might still not be able to get the time off. 🤷🏻♀️