Of course, but treating transgender men like you would a cisgender woman with all the same gendered expectations is both incredibly disrespectful if done on purpose and humiliating for someone who very much does not want to be treated as a woman despite having a period that most likely already makes them very uncomfortable and dysphoric

> only biological women have periods

generally, yes, but there are so many edge cases there with intersex people that it is far easier and more inclusive to just say roughly 50 percent of the human population has periods and avoid having to deal with the million asterisks that come with that statement

50% of the human population will at some point in their life have periods, perhaps; but presumably (due to childhood and menopause) less than 50% of the human population has recently experienced a period.

Language is consumed by people, not machines.

You don't have to speak like a lawyer.

There is no intersex person waiting to jump out and yell accusatory things at you because you didn't include sufficient asterisks or you said statements that are 99.9999% true.