The writing system has its flaws too.

• I and l look the same.
• 0 and O look the same.
• Why are their two totally different cases? Q looks nothing like q and the distinction serves no communicative purpose
• Similarly, why is there printed letters and joined-up letters – two totally different ways of writing?
• Loops are sometimes merely stylistic, but some letters like say b has a loop that is essential to it.
• b and d are mirror-images, and this confuses some children
• “dot your I-s and cross your T-s” – the pen has to be lifted from the page to do this, so people don’t always bother.

Some of these might sound like non-issues to grown-ups, but they’re hard for children.