It's somewhat surprising to me that the "block editor" thing is so popular in these beginner kits. My son (almost 11) was introduced to it at school[1] and did not find it intuitive at all. We then got an Arduino and started to write some simple programs, and he took to it right off the bat. The Arduino programming platform is simple enough to get a 10-year old started off and scales so well to "professional" projects. IMHO, schools should probably just use the Arduino platform. But I guess different kids think differently, learn differently, and what's intuitive for one might not be so for another.
[1] http://biboxlabs.in/