Fair enough.
I definitely simplified things a bit, but you can educate people on how to conduct themselves over the long term through various mechanisms. Many countries used this approach effectively to solve actual societal issues; however, the hijab is not a societal issue in and of itself.
Is it any less propaganda just because you agree with it?
Educating people of what? "Gender equality is good" is a normative statement.
And nitpicking aside, my point stands entirely, whether it's "propaganda" or "education".