The restaurant was a huge success since opening and never had any problems, Eva didn't need any money knowing that Jake was a millionaire and only worked at the restaurant because he liked it, so he decided to close for Christmas and let the employees rest with their family.
So Anna could also spend Christmas with them as a family, Jake was very happy when she heard that his mother did it and thought it was very good for the other employees too, as she can do it in advance customers already knew the restaurant would be closed a few days earlier.
Even so, when Jake came home on the 21st Eve still had to stay at the restaurant for the next 2 days, so Jake could also continue training on those days to get even better this rest week.