Have you ever played a game with your friends where there are some rules that everyone has to follow? Net neutrality is like a set of rules that everyone on the internet has to follow.
Let's say you want to watch a video on YouTube, but your internet service provider (the company that gives you internet access) decides that they don't like YouTube and want to slow down your connection to it. That's not fair, right? Net neutrality says that your internet service provider can't treat certain websites differently just because they want to.
Think of it like a playground where everyone gets to have the same amount of time on the swings or the slide. No one gets to push someone off or make them wait longer than anyone else because everyone is being treated the same.
Without net neutrality, some websites could pay to be treated better than others, which could lead to only certain websites being available because they can afford it. Net neutrality is important because it helps keep the internet fair and everyone on a level playing field.