Advice about openings is like opinions. And we know what opinions are like.
My own idea is that one should learn ALL of the openings - in the order in which they developed historically. Your first "repertoire" would be open games, and after playing those for a while, I'd recommend Ken Smith's suggestion of adopting a "forcing" repertoire (mine is London System as White, Center Counter vs 1.e4, and Dutch vs 1.d4, 1.Nf3, 1.c4 - none of these can be avoided by my opponent, so that's why they are "forcing") and learning that as well as anyone in the world.
By the way, those against KIA/KID for beginners are probably thinking that you should play open games first. OK, but otherwise what they said is crap. Any opening has more subtlety than will be appreciated by players at a lower level, and KIA/KID actually have some very good points in their favor in terms of being beginner's openings. If you like KIA/KID, there are two of your three forcing lines ... you'd probably like either the Pirc or the Sicilian against 1.e4.
But don't ignore the open games and classical defenses. At the very least, play them in casual games, because they tend to teach the lessons that should come first in chess.
That's my 2cents.
I like your answer, it has some open structure to it. I will try to look into it and i might message you with a bit more questions :)
the very most important part when you choose openings is that you choose openings you find fun! almost all openings are good at amateurlevel (below master). i even know a master who start with 1.a4 on this site. you dont want to be going on for years with openings that are boring to you do you? when you could have had fun
I agree with your point. So many high-level players think too much in how THEY see chess, not how the scrubs like me and the guys down here see it.