Maybe long-distance calls are an extra space dollar a minute, so they try not to call if they can avoid it.
LOL. also a great point. If real life is what you are comparing star wars against, then there are several factors that go into why you do something a certain way, and even if the ‘best’ way is possible, you might no do it because you just didn’t think of it at the time, you aren’t used to doing it that way, or you didn’t have the cash / latest version of the app.