I don't mind telling you, young man, that I've been at complete ends with your statement "I guess that's why there's chocolate and vanilla".......are you saying that they signify two flavours that are so opposing that they should never go together and should be eaten separately and never enjoyed side by side in a scrumptious combination?
Surely that would be preposterous!!
And furthermore, I'd like to remind you of "choc ices and Veinetta", which are a fantastic combination of rich chocolate and vanilla ice cream and have been the preferred desert of civil society for over 100 years.
Maybe you could have said "steak and custard", as no one would consume these together, unless you're one of these fancy Americans.
Yours sincerely, Mr R Walls.