That's crazy! Sally's outfit accentuates her personality in just the right ways. To-the-point, assertive, not masculine but not overtly feminine. It screams "I am not a silly frilly girly-girl" while at the same time not denying her feminine side.
I just thought it would be interesting if Sally could wear something feminine like Bunnie does is all, something like a blouse and skirt.
Y'know, kids actually don't pay that much attention to stuff like boobs unless you tell them to.
You're right. Her Satam form is very kid friendly.
Her comic form on other hand... Well, that's another story.