Here are the symbols that have meaning in say, Java:

{ } - Denote code blocks (for classes, methods, loops, etc.).
[ ] - Array indexing and declarations.
" - Delimits strings.
@ - Annotation indicator (e.g., @Override).
^ - Bitwise XOR operator.
& - Bitwise AND, and logical AND (&&).
( ) - Surround method parameters and denote precedence.
! - Logical NOT.
| - Bitwise OR, and logical OR (||).
< > - Less than, greater than, and generics.

In kcats, it’s just [, ], and ". So 3 vs 14. It’s a real effect.

I get what you are saying about python but I respectfully disagree. There’s way less a beginner needs to learn to use kcats vs python. There’s way more for YOU to learn because kcats is very unfamiliar to most programmers so they are to a large degree starting over, vs a language that’s similar to one they already know. But put yourself in the shoes of a beginner and it’s a different story.