As a sovereign nation, the UK has virtually limitless freedom in deciding its internal structure. You can pick and choose which things are decided at which leve

As a sovereign nation, the UK has virtually limitless freedom in deciding its internal structure. You can pick and choose which things are decided at which level, and how different subdivisions might be grouped into higher levels for some purposes but not others. You are not required to follow any established model -- and you are certainly not required to follow the US's rigid structure. If you want to keep sending an England team, keep sending an England team. Big deal.