Almost goes without saying, or asking. Harvesting cultivated crops is predictable and, through planning and storage, removes uncertainty as to future food supply. . . That as well as removing danger and competition for available (hunt and gather and nomadic quest for) food supply. It also allows surpluses which makes possible more offspring . . . Which further promotes surplus of food supply and provides additional labor (at younger age possible than hunting) for cultivating and harvesting. So you see, agriculture at its inception was self reinforcing. Hunting and gathering is not. It was a matter of, join the movement or watch your kind, clan, and culture be obliterated.