Originally Posted by Dagless
If TSR had wanted to make a game where everyone decides what they are doing and it all happens simultaneously, they would have done so.

Please do explain to me how, exactly.

Tabletop games having people taking turns are not designed that way out of preference. They are designed that way out of there not being any other choice. Exactly how would a group of people seated around a table playing a game play it other than through taking turns? Please do explain.