Why do kids write some numbers and letters in mirror image?

Question

I’ve been practicing the ABCs and 123s with my son and notice that certain letters (J N P S Z) and numbers (4 6) he always writes backwards/mirror imaged. I’ve seen other kids, and even my own writings as a child, have the same quirk. Is this pretty much universal?

In: 1018

Answer 1

I remember doing this as a kid while learning to write all because I’m left handed and my teacher made a comment along the lines of “oh you’re backwards since you use that hand”. Went into 2nd grade or something writing my name on everything mirrored and teachers thinking I was slow just because I was told I was backwards for being left handed.