Everything evolves and changes - it's a natural part of life. I think it's probably also natural to cling to the things we know and figure things are "best" the way we got used to them being. Maybe it's all part of being a human being. It's not as if the new country music somehow erases the old stuff. If you enjoy the older stuff, that's fine! But it's also fine to explore what kinds of new music might exist. Everyone can make their own play lists.
