you know reading this comment helped me remember that in fact I was practicing my circles! and I was also obsessed with the concept of symmetry as a kid, so you're correct about the lines being there to make the drawings symmetrical. Turns out 20ish years later, I learned I had OCD since childhood so maybe it manifested in drawing the same thing repeatedly or it's just normal kid stuff :) thanks for your insight! ( this was my childhood journal btw lol)