All music and therefore musical instruments share some overriding similarities, the structure of music, the auditory range of the human ear, even popular culture and geography. Despite the vast and undeniable similarities and even outright equalities, musical instruments and the skills needed to master them varies greatly!
The general attitude is to choose one (instrument or at most one family of instruments) and “specialize’ on learning and mastering it! Sure a piano player “understands” music and may even de facto know how to play the xylophone…….however he or she will always be better at their chosen piece; the piano!