The doc left me with two questions. This is the first.

Does activating localization automatically send users to their appropriate locale using some sort of PHP voodoo, or do I still need to work out how to redirect users to a particular locale? e.g. a landing page that says "choose your region"

I can (and will) test this on my own, but it would save anyone else with this question the trouble of testing if it were noted in the Localization doc.