When we produce the English Light L sound, the tongue touches the roof of the mouth. I feel like that's merely a Lateral consonant but not a Lateral Approximant consonant.
I know when we produce the English Dark L sound, the tongue does not touch the roof of the mouth. I feel like that's merely an Approximant consonant. (Yet, some speakers' tongue touches the roof of the mouth.)
Why do they, the author of these Wikipedia articles, use the term Lateral Approximant?