* Hair texture is complex: Hair texture isn't a simple binary of straight or curly. There's a wide spectrum, from wavy to coily to kinky, and many variations within each category.
* Genetics and environment: Hair texture is influenced by a complex interplay of genetics, environment, and lifestyle factors.
* No comprehensive global data: There haven't been any large-scale studies to collect data on hair texture across the entire world population.
Instead of percentages, it's more accurate to understand:
* Hair texture is diverse: People across the globe have a wide range of hair textures.
* No single type is dominant: While certain hair textures might be more prevalent in specific regions, there is no single type that dominates the global population.
Rather than focusing on percentages, appreciating the incredible diversity of human hair textures is more valuable and respectful.