Final answer:
I read 'Harry Potter and the Cursed Child' because it's a popular book, it was recommended by a friend, I'm intrigued by the Harry Potter series, and I found the script-format narrative interesting.
Step-by-step explanation:
I decided to read Harry Potter and the Cursed Child for several reasons. Firstly, my decision was heavily influenced by the fact that it's a popular book and I wanted to see what all the buzz was about. Additionally, a friend whose opinion I trust gave it a glowing recommendation. As someone who is intrigued by the Harry Potter series, I was curious to see how the story would continue with the next generation of characters. Lastly, the idea of exploring a script-format narrative, as opposed to the traditional novel form of the earlier books, seemed like an interesting change of pace.