Sure it's trivial to you, but to anyone who isn't a tech enthusiast, or isn't experienced in Android phones/tablets already? It'll be an incredibly daunting experience. Telling someone who isn't all that confident with computers that they need to go trawl through 'XDA forums' to find a 'toolkit', that will upon install, more than likely ask to install unsigned drivers and other assorted prompts (that will more than likely freak people like that out, I know my parents ask me about almost every program they install- bar ones they trust from big name publishers, like MS, Apple etc.), isn't going to go down all that well. The toolkit I used to unlock my Nexus 7 brought up a command prompt, that sure is user-friendly! I'm sure that's not the case with all of them, but hey, that's one sure fire way to freak someone who isn't confident with computers out.