Duh! That is the whole idea.... I knew that when I was a year or ten old and read 'my first book about space' Note this doesn't mean I understood any of it at 10 years of age, nor that this answers any questions about the existence of a God. But 10 years old I understood that there was a model of the universe that said it all came from a single point, from where time and space came to be. You were free to believe if a god made that happen or just say, we cannot know what came 'before' that (note before is not a good word, as there was no 'before' there was no time)
I guess your 'most people' would need a little more education.