The future proof aspect of changing lenses isn't something you need to worry about, as long the camera have a decent lens on, it'll be more than apt for what you want it for.
My dad stick with Pentax because his old lens work on it, but he never sway from his kit 17-55mm lens (until he got an X20 and a 15mm lens for the DSLR).
Pretty much why I suggested the X20.
The future proof aspect of changing lenses isn't something you need to worry about, as long the camera have a decent lens on, it'll be more than apt for what you want it for.
My dad stick with Pentax because his old lens work on it, but he never sway from his kit 17-55mm lens (until he got an X20 and a 15mm lens for the DSLR).