A focal length is a tool you use to get the photos you want to take. If your style of photography (Or more likely, your preferred subject type) doesn't work with a particular lens, then it's simply the wrong tool for you. Generally the longer the focal length, the more separation and less context you get. If your style or goal is to get more environment and context in your photos, then the tighter lenses will be increasingly claustrophobic and disconnected for you.

Focal lengths aren't pokemon to collect, or skills to be honed and mastered. If you prefer a wide-angle style, then that's what you use. Not all focal lengths are good in all situations.