s/he

IMHO it SHOULD be acceptable and I use it in informal writing all the time. It is NOT acceptable in formal writing, so I use they which is more acceptable to me than using he to mean all people, but is not grammatically correct. Hmph.

"She or he" is the form that should probably be used in formal contexts, since it's straightforward, unambiguous and fairly common.

Of course, a proper unsexed pronoun in English would solve all these problems.

Personally, I use s/he when ever i need to refer to both. But I don't write many formal documents. So thus, I have no idea. But i put thumbs up to s/he! :D

not to be sexist... but she or he sounds backwards... i have always heard he or she. and in an official document i would us "he or she" not "he/she" and s/he is very informal.

Before everything got so politically correct, I would recommend just using "he," as this is technically the correct way to do it. However, most people don't know this, and would probably get offended. =(

As Steve said, I would use "he or she."

The main problem with "s/he" is this: how the hell is it pronounced?

s/he, by using logic, means s or he. I think s/he is a typo of (s)he. I try to convince people that "s/he" is a typo, but nobody believes me. "s/he" just looks off.

I also once became interested in this question and read a lot about it. Later I came across the freedom of speech essay on the website https://studydriver.com/freedom-of-speech-essay/ and in the essay, I was able to see how to use certain forms. It helps to understand something well if you understand the rules.