If you want to teach kids how to look up information, you can create spaces for that. They don’t need unrestricted access to their smart phones to accomplish that throughout the day. Hell you can relax your policies as they grow up and show the maturity to handle having a smart phone in the classroom. If schools want to do that, I am all in favor of it. But they would have to start early and build a system, which is a lot to ask of already overworked educators.