> It's not fast.

Not disagreeing with you, but here’s an article from Akamai about how using WASM can minimize cold startup time for serverless functions.

https://www.akamai.com/blog/developers/build-serverless-func...

Yes. This page has several ways to get older macOS versions: https://support.apple.com/en-us/102662, but the earliest macOS version you can use on Apple Silicon is macOS 11.

If you move your home directory to a different disk partition, you can even share it between two different macOS versions!

Holy shit, it’s still being actively developed and maintained https://github.com/cappuccino/cappuccino

My suggestion is no - first have them do it the hard way. This will help them build the skills to do manual memory management where defer is not available.

Once they do learn about defer they will come to appreciate it much more.

Prefer structs over classes != only use structs.

There are plenty of valid reasons to use classes in Swift. For example if you want to have shared state you will need to use a class so that each client has the same reference instead of a copy.