to be concerned about DDs writing?

[OctoberRose]

Had parent's evening the other week. Good things said about DD who is 5 and in Year 1 (summer baby). Well behaved, polite, tries hard etc.

DD is left handed and occasionally writes her letters back to front, not in confusion (like b for d) but, intentionally forming them this way. If asked to write a word - she naturally writes it back to front - sometimes the letters will be the right way, but often it is literally mirror writing. She will also do this with sentences. She writes neatly for her age and if viewed in a mirror, her sentences are perfect.

Teacher didn't seem very concerned about this, nor did it seem, had really noticed (!) this was happening. This may be because DD is extremely quiet and shy in class, she will stop what she is doing if the teacher approaches. I noticed in her class books that during a writing lesson she will complete a sentence (the right way), then simply trace over it for a while. Maybe she is concerned about getting everything the 'right' way round?

DD can write the correct way if supervised or specifically asked to, but mirror writing seems to be her default.

Is this a sign she is struggling/behind? She doesn't seem frustrated at home when writing, the teacher didn't say anything to give me cause for worry.
Should I correct her every time she writes the wrong way?

She's a very bright little girl, takes in everything and is not at all shy at home (The complete opposite!! She's extremely stubborn!), has great speech and is good at maths. As a toddler, she took ages to sit up (9 months) then crawl (11 months) walk (18 months). She basically waits to do everything (even talk) until she's certain she can do it properly, without falling or failing.

Sorry for the length, none of this may even be connected - just want to know if I need to worry, do something etc!

[Atenco]

And, apart from the issue of left-handedness, apparently it is quite normal for children up to the age of six to sometimes write letters the wrong-way round, as every other object in their life is the same whichever way you look at it.