The reason it is unusual to see a basement in Texas is because it’s VERY expensive to make one here and they usually cause more problems than they are worth. Depending on where you live in the state either the soil is clay which constantly moves getting too soft or too hard and cracking OR it’s too hard. Like giant slabs of limestone have to dynamite to make a basement.
Don’t have to worry about permafrost in Texas and foundations don’t have to go that deep in most soils in Texas. It’s less expensive to build up, than dig out and build down. There also tends to be adequate space to build laterally if a larger building is required.