I'd learn Objective-C if you have any intention of trying to be employed doing iOS. There's going to be a ton of legacy code, and any apps developed from 2008-2

I'd learn Objective-C if you have any intention of trying to be employed doing iOS. There's going to be a ton of legacy code, and any apps developed from 2008-2014 will have large Objective-C codebases, guaranteed. Swift is designed for interoperability with those codebases, so you'll need to know how to read and understand the legacy code for some time to come, even if Apple eventually deprecates Objective-C in favor of Swift. If you're doing development for yourself or your own edification, though, you could totally skip Objective-C. It might be worth it to get an overview of the syntax so you can read StackOverflow answers and tutorials about Apple's APIs (which are by far the biggest part of learning iOS dev), but otherwise skipping straight to Swift should be fine.