PWA(Progressive Web Application) is ready, Native Apps necessary? Why?

As network connections becoming better and better, web browsers loading faster and faster, is that still necessary to build native apps(IOS, Android, etc.) to working with websites? Mine is running with PWA and we design it exactly like a native app even running on a cell phone. Some team members ask to build one first, some are not. can someone please give some advice and it would be greatly appreciated. Also, what's yours? if still need one(s) or not. Why?