Ok kiddo, so Wales is a part of the United Kingdom right now, but some people in Wales think that they should be their own independent nation, like being a grown-up and moving out of their parents' house.
When Wales became a part of the UK a long time ago, they agreed to let the British government make some of their important decisions for them, like how to run the country. But now, some people in Wales think that they should be able to make those decisions all by themselves, like a big kid making decisions for themselves.
They think that if Wales became an independent nation, they could make their own laws and rules that fit the Welsh people better. They could also have more control over things like their economy and their taxes, which could be helpful.
But there are other people in Wales who don't think it's a good idea to leave the UK. They like being a part of the bigger country and think that it's better to stick together with their other British neighbors.
So, it's a big decision that people in Wales have to think carefully about. Do they want to be independent and make their own decisions, like a grown-up, or stay part of the UK family?