Personal tastes aside, of all the grain types out there, why did we/almost all Asian countries choose to plant rice, and make it the staple food?

My uneducated POV is that rice isn't the easiest to grow; from seed babatubuin para maging binhi, then itatransfer sa flooded paddies, requiring a lot of water, manually, one by one.

On the other hand, wheat and barley doesn't seem that picky; it's practically like grass. Not sure about the water requirements but they definitely don't grow them in flooded paddies. Corn also seems easier to grow, as well as root crops.

Mas bagay ba yung bigas sa weather natin? While gov't does have its failures in supporting rice farmers, imho storms, floods, etc tend to ruin most rice crops faster than any government ineptness.