The reason why the phrase in the sentence in nonrestrictive can be explained in the following manner:
In the sentence, the phrase "Julian" is nonrestrictive because it can be removed from the sentence without altering its meaning. In other words, it is not essential for the meaning of the sentence and can be left out.
A nonrestrictive or nonessential element is a sentence is a word, phrase, or clause that provides extra information about another element but is not necessary for the sentence's meaning.
In "My youngest brother, Julian, is already taller than I am," "Julian" is a nonrestrictive element. It provides the name of the brother, but it can be removed without changing the meaning:
"My youngest brother is already taller than I am."
Learn more about nonrestrictive elements here:
https://brainly.com/question/2884165
