I feel like this is an underrated sentiment. A lot of Rust’s design decisions (lack of inheritance, borrow checking, immutability by default) are complete non-i

I feel like this is an underrated sentiment. A lot of Rust’s design decisions (lack of inheritance, borrow checking, immutability by default) are complete non-issues when you’re reading a JSON string into some business struct or an enum and then serializing it back out to a DB again. Everything can be flat data types and functions can be pure and stateless. But not if you actually have to keep things around in-memory. Then all the sudden your functions can’t be pure, you have to add additional parameters to each method to account for additional state, and you can’t design flat structs anymore since you have many different object types and they have to go somewhere and you can’t just declare N variables line by line. So you have to grapple with the limited definition of trait objects, or non-extensible enums, or throw everything out and use Any. It gets complicated.