The KJV is beautiful, and though I left my lifelong Protestantism four years ago and a received into the Catholic Church, I still read the KJV sometimes. The language is easy for me. But for many people the language is not clear and can lead to confusion, boredom, misinterpretations, and even a loss of interest in reading Scripture.
The NIV has a lot of references for people who want to study and can be an open door for those who are not good readers. I saw this with my late father, who was not a native English speaker and never ever read the Bible, even though there were many different editions in my parents’ house. When I gave my Protestant mother a beautiful edition of the KJV for Christmas one year, my father was entranced and began reading it, covertly but urgently. I only hope it made him accept Christ.
These days there are enough study aids, on and offline, so that this shouldn't happen to anyone who seriously desires knowledge. My Zondervan KJV, foe example, contains its own concordance and a series of scripture notes that make reading the text even more of a pleasure.
But you are quite right to note that the goal of Scripture is for its reader to accept Jesus Christ. Bless your day.
I tried to find it, but there is scripture about the unsaved being confused by the Bible, that the Holy Spirit guides us in our understanding.
A few years ago a neighbor wanted to read the “Christmas” story out of one of the new translations and was quite embarrassed. Here, let me whip out that KJV and read you what you know it to be.