As someone with a few years in the industry who's currently volunteering to help teach high school kids coding for the first time -- you have no idea how easily code confuses newbies.

Take even the smallest snippet:

while (Count <= 3) {

To you or me, this is pretty obvious. I've had kids ask me questions I'd never have thought of because I know this stuff already:

* What do the parentheses mean? * What is Count, is it a Javascript thing? * Is Count being set to 3? (<= looks like an arrow, not necessarily less than or equal to) * What is that squiggle? (meaning the '{') * Is this a program?

I'm with you, the Blockly stuff is hardly legible to me. But to kids learning this for the first time, I can tell you from first hand experience the color/shape/block aspect makes a huge difference.