That's way too late, BTW. In most of the developed world, loosely "algebraic" thinking is introduced starting from the earliest grades, generally phrased as "here's how you should reason to solve these complex, 'multiple step' word problems". "Single-step" word problems (as we'd call them in the U.S.) are effectively unknown, since they're pointless (except as a curiosity); the whole point of word problems is to introduce complex reasoning about mathematical operations, which then seamlessly motivates formal algebraic reasoning.
(A good review article on this approach: Persson, Ulf and Toom, André: Word Problems in Russian Mathematical Education, available at: https://cs-web.bu.edu/faculty/gacs/toomandre-com-backup/my-a... )
I'm a product of NC schools. When going to grade school in the 90s I did not realize that those schools desegregated less than 10 years prior. The advanced classes were essentially all white. Those advanced classes in early grade school position you for the slow track, or the fast track.
So you're agreeing that Algebra I is viewed as an "advanced" class in the context of Junior High math. (Obviously this is not the same sense of "advanced" as pre-calc or calculus. That should go without saying.)
No, I'd say Algebra I isn't an advanced class, but rather the "gatekeeper" class you have to pass to get into the actual "advanced" classes.