I love being a polyglot dev and I love learning and using different programming languages, frameworks, and app platforms. The issue I have is with learning redundant frameworks that don't actually give me more power.
To continue berating ORMs, I am in charge of several different projects at work that communicate with SQL databases. The set of programming languages that span these projects is: Kotlin, PHP, Rust, and JavaScript (being phased out). I love getting to switch between these languages (just not too frequently, lest the context switching kills my brain), and I feel like it helps me to see the strengths and flaws in each, and it's just really fun to find effective patterns in each.
Whether I use an ORM in all or none of those projects, I'm going to have to be competent with SQL. But if I decided to use an ORM for all four, I'd have to learn five different ways to get data in and out of our databases. Rather than learning four redundant, incomplete, data retrieval "languages" that sit on top of SQL, I rather learn... almost anything else.
I have used lots of ORMs: The Symfony one for PHP whose name I can't recall, Magento's weird one for PHP, Hibernate (Java), Sequelize (JavaScript), and a few others in other languages. They all have subtle issues. And they are "issues" and not just different design choices- I'll never ever accept that Hibernate/JPA/JDBC returning a `(int) 0` when it encounters a null result from a nullable integer SQL value is anything short of lunacy when Java has a native null value. And they all have stupid things like that. Learning those gotchas, bugs, abstraction leaks, performance problems, etc, is not the fun kind of learning for me- it's just tedious and frustrating.
So, to bring it back to SwiftUI, I love that I manage an iOS app. I like learning about how iOS works, and I like working with Swift. It's still required that we know how to use UIKit APIs for non-trivial stuff, so why would I learn SwiftUI (and its problems and gotchas) so that I can do 75% of my work with SwiftUI and 25% with UIKit APIs? It's possible that it would make me an even better iOS dev, but I doubt it (at this point). I think my time is better spent learning something that will allow me to accomplish tasks with computers that I don't already know how to do.
