Talk:Whitley Schnee/@comment-107.221.242.206-20170125213906/@comment-25936766-20170126010300

Pretty sure it's along the lines of the former.

Winter is a Specialist, Weiss a Huntress in Training. They both have trained for years, and that training includes using Aura and by extension their Semblances.

Whitley hasn't. Maybe he tried before but didn't bother continuing. Maybe he just didn't like fighting. In any case, he didn't train constantly to Hunter levels like Winter and Weiss did, so while he can use the Glyphs, his expertise is so low, it's as good as not being capable of using them (at least, using them well-enough).

If you never bother to practice X, you will never be able to do it.