I've been fortunate (or not fortunate based on certain views here) to be working on a fully Swift app for the past 5 years or so. The upgrades have been painful

I've been fortunate (or not fortunate based on certain views here) to be working on a fully Swift app for the past 5 years or so. The upgrades have been painful but we've had a team helping for that process. But I don't see a good reason to write Obj-C unless I work at Apple or a huge legacy codebase anymore.