[Revolting cat!]

It’s down to me
The difference in the clothes she wears
Down to me, the change has come,
She’s under my thumb
(The Rolling Stones)

Why “down to me” not “up to me”?

[Fresh Wind]

That must be English English. It’s a different language.

[clinkclink]

Because it’s the better lyric for a pop song. That’s why.