It is necessary because if you don't have a confirmed opinion with textual evidence to back it up you wont have a good argument.
I would say tipped his hat because without it you need a word phrase or else the sentance wouldn't make sense.
Hope this helps! Happy Studying!
It is called the third person or the Omniscient. <span> To present Beowulf's thoughts, for instance, the narrator adopts the point of view of an omniscient author and gives us a glimpse into Beowulf's mind; or he causes Beowulf to reveal his private thoughts by having him declare them through a public utterance. In either case, a reader's attention is directed toward Beowulf. </span>
