Simplify the following text for a Grade 7 native English-speaking person.
Original: After reading the last book , where Harry and his friends do indeed survive and have children , Radcliffe stated he was glad about the ending and lauded Rowling for the conclusion of the story .
Simplified: After reading the last book , where Harry Potter and his friends survive and have children , Radcliffe stated to be glad about the ending and lauded author J. K. Rowling for the conclusion of the story .