Looking back, he should have realized what other people's reactions would be from day one, the moment his teammates and students first saw the new Magneto.
Emma: "Darling, you already had that helmet to hide the white hair and pretend you are not over eighty-years old; did you really need to shave it?"
Scott: "What kind of idiot do you take me for? Do you really think you could do that and I wouldn't notice you're only trying to drive me insane with the guilt you think I feel over Xavier's death? The joke's on you, Erik." And yet, behind his visor, he couldn't stare at Magneto's face for longer than a few seconds.
Illyana just laughed so hard she was sucked into Limbo without realizing.
One of their new students (he couldn't bother learning their names until they proved themselves worthy of being remembered): "Doesn't he look like John Locke, from LOST?"
Deadpool (hey, you don't belong here!) (Of course I do, I'm an X-Man!): *sigh* If only you were on the hands of writers who aren't bald, maybe you could have kept those flowing white locks. Self-insertion is reaching ridiculous levels these days...