Being from down here in Louisiana and raced many times there, yes they aways start every race like that. Part of our culture and there was talk of the phrase being done away with, and the horsemen were not having it.lol When I was old enough to really watch and understand race calling, we were watching a race on tv and the announcer was calling the break, and my mom said I turned to her and said "Ohhhh he is gonna be in so much trouble, he didnt start the race right".
I thought all races started by that phrase.