I am a self taught lefty knitter and it was difficult for me in the beginning as it probably is for all knitters. But, I knit the "regular" way. I am sure your daughter can do it because she is a lefty (we can do anything). I have always had to learn how to manage because everything is geared towards righties and I have found it better to adjust because as someone stated earlier almost all patterns are written in right hand format and I think it will be more cumbersome to her to try and do the mirror thing or anything else that others suggest.
It really didn't take me long to learn, because I learned it the "regular" way, I knit English and I can do continental as well, but perfer English.
Believe me, she definitely can do it, she is doing the most important AND hardest thing right now raising a child
Because you are right handed and showing her she will definitely pick up. She will be frustrated in the beginning, but I think that is normal for everyone in the beginning and this site is very helpful. I also learned from a kids book because it was very specific and they had poems to follow.
Sorry it is a little long winded, but from one lefty knitter to a soon to be knitting lefty, I figured i should add my two cents.
I too am a 32, left handed knitter. Hey, maybe we should start a group!!!