Okay kiddo, so you know how there are different kinds of churches, like Catholics and Baptists? Well, sometimes people want to switch from one kind of church to another, but they still want to keep some of the traditions and practices from their old church.
That's where something called a personal ordinariate comes in. It's like a special group within the Catholic Church for people who used to be part of another Christian church, but still want to have some of the same traditions and beliefs they had before.
So it's kind of like if you moved to a new city and your old friends started a club just for people who used to live where you did. You could still be part of that club, even though you don't live there anymore.
In the same way, people who join a personal ordinariate can still be Catholic, but they also get to keep some of the traditions and practices they had before, like the way they sing hymns or the way they say certain prayers. It's a way for people to feel like they belong to a community that understands their background and beliefs.