Nundinae was only for the ruling class to go shopping

https://en.wikipedia.org/wiki/Nundinae

So sorry, you still get to bake bread all day.

And Greek festival days involved.. lots of food, baths had to be hot, etc. So someone has to run the event. It wasn't the common people getting a day off.

But 90% of the common people were farmers and were not bakers or bath tenders or vendors or the like so would be enjoying the day off. Although farmers didn't really need dedicated days off because their only schedule conflictions would be the main planting and harvest months, the festivals would just be a good way to bring all the farmers together at similar times to party and spend money or trade.

What do you think the Hebrew Sabbath is, exactly?