What is your opinion of retailers telling employees they must work on a holiday?

I was in my local Walmart last night and I was having a chat with the cashier. She told me that Walmart (the one I was in), is open from 7 in the morning on Thanksgiving morning to 10 at night, Black Friday. She told me all employees must work on Thanksgiving.

I know in the past, Walmart has said that working on Thanksgiving is voluntary. Apparently that rule has changed, or it was never true.

What is your opinion of stores telling employees they must work on a holiday?

One impact to the employees’ personal lives is that they can’t travel far from home (from their home store) on Thanksgiving. No cross country trips or anything like that.