As a teenager, Denmark’s Crown Prince Frederik felt uncomfortable being in the spotlight and wondered whether there was any way he could avoid becoming king. But now, the 55-year-old will become King Frederik X when he finally takes over the crown on Sunday from his mother, Queen Margrethe II, who is breaking with centuries of Danish royal tradition and abdicating after a 52-year reign. Margrethe stunned the nation when she announced during her traditional New Year’s Eve speech that she would step down, citing health reasons. A royal palace spokeswoman told the Berlingske newspaper that the qu…