[ Magneto's is flawless (and accentless), if a little antiqued - which would fit what Russian Alec likely knows. ]

Also easier to shout over the vast frozen steepes.

[ There are some ways to tell - it doesn't put the same age on bones that normal growth does - but Magneto has neither the powers or tools currently to tell. ]

There are many explanations. Does that happen with other siblings or unique to your family?