Swift was designed around emojis it seems. First page in the manual shows how you can use emojis as variable names. I get why Apple wants to be clear how there are different ways to index into strings (even if this is motivated 99% by emojis like "family: man woman boy boy skintone B"), but still, the API didn't have to be this confusing or have so many breaking changes after GA.
About structs and pointers, I'm familiar with them in C/C++ where the syntax is clear and consistent. It's not consistent in Swift. And arrays don't even act like regular structs, I forgot: https://stackoverflow.com/questions/24450284/conflicting-def...