Okay, just for a moment let's set aside the fact that Pee Wee Herman doing a serious commercial about using crack is really, really (unintentionally) funny, and focus on just how logical it was to use that character in the first place.

One assumes this commercial was made when Pee Wee's Playhouse was on the air, which means his main audience was grade school children and not so much the older hipsters who knew the more "adult" Pee Wee character Paul Reubens created while with the Groundlings.