Serving Plate

Do you have to warm dinner plates when serving a 5 course meal?

When serving a 5 course dinner, do we have to warm the dinner plates? Or do people warm the plates for hygiene purpose? Or is it because they put it in a dryer that why it’s warm? If yes, how to do it the easier way without any other equipments?

HELLO

SOME PEOPLE HAVE A COLD STARTER (COLD PLATE)
SOME HAVE SOUP WHICH HEATS THE BOWL
ANY FOOD WILL STAY WARMER FOR LONGER IF SERVED ON A HOT PLATE
IF THE SECOND COURSE IS HOT (FISH)
WHILST SERVING THE FIRST COURSE HAVE THE PLATES FOR THE SECOND IN THE SINK FULL OF HOT CLEAN WATER AND LEAVE AS LONG AS POSSIBLE
DRY AND USE AS REQUIRED
IF THE THIRD COURSE IS HOT (MAIN COURSE)
WHILST SERVING THE SECOND COURSE HAVE THE PLATES FOR THE THIRD IN A SINK FULL OF HOT CLEAN WATER AND LEAVE AS LONG AS POSSIBLE
AFTER THAT IT DEPENDS WHAT YOUR FORTH COURSE IS YOU MAY NEED HOT AND OR COLD PLATES
AFTER THAT DEPENDS WHAT YOUR LAST COURSE IS THIS I WOULD GUESS AS A CHEESE BOARD AGAIN COLD PLATES
IN THE OLD DAYS THIS IS WHAT A HOSTESS TROLLEY WAS USED FOR

How to Serve and Clear Plates Like a Waitress