That isn't always a benefit, though. When interfacing with a database schema that uses small integers for ids, I'm all the time defining types like `struct Cust

That isn't always a benefit, though. When interfacing with a database schema that uses small integers for ids, I'm all the time defining types like `struct CustomerId(u32)` and `struct InvoiceId(u32)`. It's incredibly valuable that the compiler will not let me mix up a customer and an invoice, even if both of them are 42.