[ecesena]

I was mostly referring to the 4 closing parentheses in a row. I agree it's something difficult for everybody. I have the habit to open&close parentheses immediately, even when I write in word, but it's definitely something that the "normal" person doesn't do, let alone kids.

[g8gggu89]

I suspect if you can learn to play Mancala in elementary school you can learn to manage counting up to at least 4 braces.