I imagine it would get REALLY annoying if every command line program started doing that, every time you logged into a new machine.

Of course, that suggests we should introduce some kind of standard, then bash (or whatever shell you use) could prompt you once, and every other program could use that setting.

At least this would make the problem with how many commandline tools are tracking you visible, and perhaps would start a discussion on the necessity of tracking for tools like brew, ls, cp, dd and so on.