How many parents allow their tweens to watch PG-13 rated movies?

Twelve.

Our parents vetted the things that we were allowed to watch or not watch, who else has the right to say that....we belong to them and no body else...

I work at the movie theater.
PG-13 is ok to let teens or anyone watch movies.

Tweens see more here with normal commercials than PG-13.  Things in the US are so prudish IMO. 

T&A is not surpressed here are nor is alcohol etc, consequently it is not the forbidden fruit to be sought after.  Most Teens and Tweens are aware of sex, drugs and Rock&Roll.  Most are sexually active as well, NBD.  We also do not have a Teen Pregnancy  problem, nor do we have one with alcohol.  Go figure