Fine call it a rule if you want. That doesn't change the meaning. Women are not permitted to be over men in the church and are not permitted to teach in church. They are, based on other passages, allowed to teach other women, they are allowed to teach children. But the main church ministerial duties are assigned to men.
You've got this slate of rules worked out . . . but they are not in the Bible.
For instance . . . where does it say women can teach "young men"?
You are the calling Paul's statement a command, now
you offer "a rule", I'm the one saying he wrote about himself. You are the one turning that into a command/rule/maxim/pickyourword, Again, whatever our conclusions, we need to be able to read the Bible for what it says, and to recognize what it isn't saying.
And to realize . . . "It's OK for women to teach men until the 5th grade" that this is arbitrarily made up, and is NOT based in the Bible. Nothing tells us that.
And you realize both Aquilla and Priscilla taught Appolos, right?
Much love!