In england how old do you have to be until u can leave home :(

in england how old do you have to be untill u can leave home :(
I haven't looked but try the search engine, Google.com, and try entering "Age of Majority" UK, see what you find but I have a feeling that since you are asking, you perhaps are very young? Am I correct? If so, I would seriously ask myself AND someone slightly older than you that now lives apart from their parent or parents what they thought about your idea.