Well, there’s often a fudge-factor that gets employed, because creators also want to be true to the original comics and when they were created as well–and X-MEN #1 came out well before a lot of technology and societal changes that we today take for granted. Typically, those scenes get written without being too specific–I don’t think anybody often says that the X-Men have only been a group for about a dozen years anywhere in print–so the people that want to remember those stories as they appeared in 1963 aren’t alienated by Cyke and Jean texting one another, and the folks that want to understand why modern-day Cyclops isn’t a sixty-year-old man have the context they need to do that as well.