Karate Chopping Gender Reversal

As usual I was watching an episode of Spongebob Squarepants today. In today's epidsode Spongbob and Sandy were karate fighting the entire show because Sandy thinks she is, and is, tougher than Spongebob. After watching this episode it really got me thinking about Sandy in general. Sandy wears a pretty flower in her hair and wears a bikini, but all of her manurisms on the show contradict her physical appearence. What girly girl could really kick somebody elses butt, and love doing it. Sandy is also very independent and assertive. These characteriscs mirror what society says about masculinity. Spongebob is weak, passive, and very dependent on others, this mirrors the definition of femninity in society. Could this role reversal be trying to even out gender roles in society? Could this mean that the producers want boys and girls to know that they can be how they want? After watching this episode I think they were trying to let children know that they can act how they want regardless of gender roles. Maybe society is changing after all.