Why can't hydrogen be called a metalloid if it shows resemblance to both alkali metals and halogens(non-metals)?

The following properties are usually considered characteristic of metalloids:
    * metalloids often form amphoteric oxides.
    * metalloids often behave as semiconductors
The following elements are generally considered metalloids
    * Boron (B)
    * Silicon (Si)
    * Germanium (Ge)
    * Arsenic (As)
    * Antimony (Sb)
    * Tellurium (Te)
    * Polonium (Po)