Simplify the following text for a Grade 6 native English-speaking person.
Original: Worf did not take the Rozhenko 's last name , preferring to be addressed by the Klingon designation `` Worf , son of Mogh '' .
Simplified: Although Worf never took the Rozhenko 's last name , for he preferred to be addressed as `` Worf , son of Mogh '' .