I think I'm onboard as long as the procedure is cumbersome enough, and the registered adult owner of the device confirms that they understand and agree the warr

I think I'm onboard as long as the procedure is cumbersome enough, and the registered adult owner of the device confirms that they understand and agree the warranty and support is void. If you want to keep iOS as well... at that point, I do feel Apple is also in its right to remove all trademarked content from the phone running an iOS-like OS. AppStore, applications, remove all reference to words like "iPhone". So it would be a very bare-bones iOS-like. Because otherwise it could negatively impact their brand. Their brand is built on the premise they build amazing products for customers who want those products. If someone looks at your "modified, uncurated iPhone" and thinks it "feels janky" or "poor UX" or "bad battery life" or ..."" that could result in that person not buying/recommending an iPhone. Apple clearly values its brand highly and I can see why they would want their brand to be distanced from the type of device you would like.