You know how I hate to quibble, but the properties of sand are not as uniform as you suggest.Sand is not a changing environment for people, which means that it doesn't affect Bedouins' living the same way the snow affects Eskimos living.
- Varies chemically
- Varies in fertility
- Varies in average grain size
- Varies in abrasiveness
- Varies in moisture content
- Varies in compactness/density
- Varies in colour
- Varies in reflectivity
- Varies in its rate and degree of heat absorption
- Varies in clumping ability/stickiness
- Moves and settles differently, depending partly on the effects of topography, weather and prevailing climate as well as its chemical and physical properties.
I'd say these variations in the properties of sand necessarily have a considerable impact on the way of life of the Bedouins.