Why is it that the letter “y” is not considered a vowel?
I’m confused by the question. Are you asking why IS Y considered a vowel or are you asking why ISN’T Y considered a vowel — your question asks both, kinda. In any case, Y definitely IS considered a vowel in English, but only in certain words. It can have a vowel sound, but if it was always considered a regular vowel, then the word “you” would be pronounced “eye-oo” or something like that. It would mess things up. All English speakers learn that the the vowels are a, e, i, o, u (and sometimes y). I think that Y is considered a “sometimes” vowel because it is first a consonant, with the “extra” ability to serve as a vowel.