I've asked black guys why they don't swim. The answer is simple. Their hair. Unlike other human phenotypes, black individuals tend to create far less oil on the scalp, which results in dry, brittle hair. So much so that there is an industry built around marketing scalp oils to them (re: https://blacknaps.org/best-oil-for-black-hair/). This low oil generation is also a big part of why du-rags are popular among black men.
As anyone who swims regularly knows, chlorinated water is extremely damaging to hair. Since white people typically generate more oil than their hair needs to protect itself, this is usually not a huge problem -- but in black people, it can cause issues with both hair and scalp. (re: https://bglh-marketplace.com/2011/12/hard-water-and-hair-breakage/)
I've asked black guys why they don't swim. The answer is simple. Their hair. Unlike other human phenotypes, black individuals tend to create far less oil on the scalp, which results in dry, brittle hair. So much so that there is an industry built around marketing scalp oils to them (re: https://blacknaps.org/best-oil-for-black-hair/). This low oil generation is also a big part of why du-rags are popular among black men.
As anyone who swims regularly knows, chlorinated water is extremely damaging to hair. Since white people typically generate more oil than their hair needs to protect itself, this is usually not a huge problem -- but in black people, it can cause issues with both hair and scalp. (re: https://bglh-marketplace.com/2011/12/hard-water-and-hair-breakage/)
Seriously, this is not that complicated.