No Basements In Texas

I do have a lot of friends living in other states. I do have circle of friends too and sometimes we talk about home renovation or home remodeling and we even talk about basements. We asked ourselves why houses in Texas have no basements at all. Unlike in other states, it would be unusual for a house without one.
I asked some of my friends who live in Iowa and other neighboring states if they do have basements, they all said yes. In fact, there is this friend who just had their basement installed with a basement floor tile for they were tired of their old ancient basement laminate floor.