Kicks are effective, but not against someone who has a better weapon than you for that range.
Sure. But what about if you're in a brawl with a nord who's trying to fight you with his fists?
And I could easily use your same argument against you and say that grappling is utterly worthless and shouldn't be bothered to implement because 1. frost trolls. 2. dragons. 3. magic users. 4. bow and arrows.
It seems like H2H is impractical considering that this is a game with dragons and magic and deadly weapons, but that doesn't mean that we shouldn't be denied the skill. It might not be as nearly as good as the rest of them, but it would be interesting to roleplay a monk-type character. And throwing in some kicks with your punches would make it more interesting than just "punch punch punch power-punch punch punch".
And earlier you said that H2H should mainly consist of punches, minor grappling moves, and headbutts. HEADBUTTS? really? You want to see headbutts, but not kicking? You....you're not making any sense.
The only issue I have with H2H becoming a skill, is that it would level up your character when you get into a bar brawl. I like how it doesn't contribute to your level (I like to be somewhat of a power-gamer), considering that there is still some level scaling and max level and what not.