Because it solves no problems. Unless you consider “we want web tech everyhere” to be a valid problem. “Cross-platform” development may look like a problem wort

Because it solves no problems. Unless you consider “we want web tech everyhere” to be a valid problem. “Cross-platform” development may look like a problem worth solving, but the dolution is a lie. If you use native UI you will have to deal with a native tech to a degree. Is (cost + pain)/benefits worth it—that’s up to you. But seeing how RN stuggled with the thing that’s trivial in native—navigation stack—I’d stay away. Also these bridged technologies will always lag behind and can be really painful after significant updates to UIKit.