Doesn't grow, from the words "almost at all". In the best case, islands with sparse vegetation. The only plus is you can shave once a week, there are no more pluses.
The factor is psychological. They feel comfortable without a beard, do not complex about insufficient brutality, are confident in themselves.
The aesthetic factor. The beard does not suit them, the vegetation is sparse, there is no desire to bother with grooming the stubble, the women they love are protesting because it "pricks" there, the strict corporate dress code prescribes a neutral appearance and shaving to zero.
Underline what you need.