I can take or leave titles. For me, it's the 'book' part of scrapbooking. I don't need every page to have a title. If it's a long story, then yes, it usually has a title. Like a TLDR (too long, didn't read)! Sometimes my title is something that didn't make it to the journaling, or is a Who, what, when, where, part of the story.
Like this one, the title is the 'what'. I used his speech as the journaling, so there isn't an explanation of what this is.
This one, the title is the artist. Another 5 W answer:

No title on a facing page:
A very blunt title (Also word art from the kit). Mostly because without it, you would have no idea this was a field trip unless you read the journaling.
Double layout, no title on either page. Some might consider the word art a title, I don't.
I do like to play with titles sometimes and make them creative. This example is me being silly and making fun of my bad selfie skills.
Boys could be considered a title here, but it's not what I named the layout (love statue). So my title does not always reflect the file name on my computer:
And, two more examples of no title.
I title when I feel like it, and don't the rest of the time. If a title doesn't jump out at me, I don't worry about having one.