He felt for his old uncle and as this was his only relative he wanted to wish him health at that time of year
Fred States "Here is a glass of mulled wine ready to our hand at the moment; and I say, 'Uncle Scrooge!' " "Well! Uncle Scrooge!" they cried. "A Merry Christmas and a Happy New Year to the old man, whatever he is!" said Scrooge's nephew. "He wouldn't take it from me, but may he have it, nevertheless. Uncle Scrooge!"
Because he feels that the conversation he has had and using Scrooges name in their game has brought them "much merriment"
Scrooge's only living family member was his nephew, Fred. Fred was the son of Scrooge's sister, Fan.
Fred Scrooge was his nephew and only living relative. Since it was his sister's child it is not Scrooge. Maybe Fred Holloway or Holywell
Fan was Fred's mother but died giving birth to him and Ebenezer Scrooge never forgave Fred for it. Just like Ebenezer's mother died giving birth to him, and just like Scrooge never forgave Fred for 'killing' Fan, his father never forgave Scrooge either.
Fred, Scrooge's nephew
she died when she gave birth to Fred, Scrooge's nephew
Simply to invite his old uncle to dine with him and his family
Fred is feeling sorry for his old miserly uncle whose wealth everyone refers to does nothing for him as he doesn't spend it
Fred was a warm friendly person who sought only to keep the relationship between himslef and his uncle Scrooge open and welcoming despite Scrooge disliking the fact that he wed not for money but for love
Fred, Scrooge's nephew, stops by to invite him to a Christmas dinner. Despite Scrooge's initial reluctance, Fred continues to extend the invitation out of goodwill and to mend their strained relationship.
His nephew Fred stops by to invite Scrooge to a meal in A Christmas Carol.