Here's why:
* Hangul is a phonetic alphabet. Each symbol represents a specific sound, unlike characters which often represent entire words or concepts.
* Hangul is made up of syllables. Each syllable is formed by combining individual consonant and vowel symbols.
* Hangul is relatively simple to learn. Unlike complex character systems, Hangul is designed to be intuitive and easy to learn, with a relatively straightforward relationship between sounds and symbols.
Therefore, although Korean uses written symbols, it's more accurate to describe Hangul as an alphabet rather than a character-based system.