I teach English in Japan, where text goes all over the place, in any direction, whereever it feels like. Very disconcerting.
But even with kids who have no exposure to English except in my class, because we read English picture books, and I always show them the title and that the pages open “This” way, and the print goes “This” way, the kids are not confused about order. You can also do a very exaggerated head swipe from left to right as you “read” your upheld fists". Anything that gets a laugh is remembered.
I am sure that China Guy reads to his little ones, and with a bit of pointing out at random times, not necessarily connected to the writing times, she will soon get English writing direction, if she hasn’t unconsciously internalised it already.
As others have said, its an organic process with bits of information from various times and places gradually coming together. She’ll have a long phase when she can get all the bits she knows right but not put them together to make a consistent whole. (For example she’ll turn the pages of a picture book the proper way but write diagonally backwards across her notebook). It doesn’t matter!
It depends on whether your daughter will tolerate you actually teaching her anything, too. My sons get really stroppy if they smell anything like a lesson coming from me. If she is resistant at this age, I’d say don’t push. I had success in writing little notes for her to read, silly things like “HB Boy is smelly” (works for little boys…) and they would willingly read them. Then I started asking questions in the notes and passing a pencil with the note. This is a good game while waiting for a meal in a restaurant or similar waiting places.
If she is willing for you to teach her the stroke order etc then you could try the magic vegetable game - you need to find plastic toy vegetables which could conceivably be pencils - carrots, cucumbers, asparagus, a long eggplant at a pinch! Then you use the magic vegetables to write in the air with her (stand next to her facing the same way!)
Another thing you can do is make up a kind of chant about how the letter goes as you write it. For example in my class, you write “b” by going “down, up, boing!” but “d” is written with an “arouuund, up, down!” (if you see what I mean!) This also works with kids who have trouble remembering which is M or N. I often hear kids prompt another one with “boing!” or “boing, boing!” They all love capital R which is “Up, down stop. Top, boing, kick!”
As well as the letters, their shapes and names, it is important that she learn phonics, because that will stand her in good stead as she hits words she doesn’t know but will be able to more or less sound them out. This is vital for kanji-learning people who tend to learn words by memorising them. After all you can’t sound a kanji out - you either know it or you don’t.