I’m not sure a parent wrote it on their own, because the first thing my 6 year old would say if she was “found” from a post like this, would be, “I didn’t write it”, if she had nothing to do with it.
I can understand some of the spelling mistakes because although they learn phonics, they’re learning tricky words. My daughter knows roughly how to spell because but does forget the odd letter in it. Same as school, if she’s rushing she would forget an “o” out of “oo” because she hasn’t learnt that word phonetically. She’s learnt it by remembering for her spelling tests.
I agree the writing style is a bit strange, but my 6yo would also tape money to a letter. She did it for her grandparent because she heard they collect coins. She didn’t understand that 6p wasn’t really what they were looking for, but taped it down anyway. I didn’t know until they opened their Christmas card 😂.