I disagree, Rust and WebAssembly are both two things that are growing quickly and taking advantage of that right now would be a good idea (Since they can both be used together in Web development) and I was just giving him a list of things he should learn as a web developer in general. He can go at his own speed and learn each language and frameworkwhen he wants to at his own pace but it's not a bad idea at all to learn all of that.