Because tooling would route around it immediately. Among other reasons, you can't have interactive prompts for support gumming up your CI (and if they're not in

Because tooling would route around it immediately. Among other reasons, you can't have interactive prompts for support gumming up your CI (and if they're not interactive, then they're trivial to ignore). NPM does something close to this, but it's much more opt-in for the user.