Why?

Why does vi use key combinations and mod keys involving ALT and CTRL?

I mean, they aren't as hard to reach as the arrow keys or Home End but still they aren't in the most reachable position.

Why not just use combinations of the home row and other letters.

That said I believe I can myself customize vi that way.

How do I go about that? I would totally switch over to vi if I could do just that. I don't think it's possible in emacs?!

If you've switched ctrl and caps lock, then I don't see the problem. Alt isn't a problem either if you use your thumb.