All the F-35As were roped off or behind barriers.
The RNLAF F-35A in my photo had their LTC sqn cdr in attendance speaking to the public and a merchandising stand with aircrew and groundcrew (just out of shot in the corner).
The USAF F-35A in the modern day static was behind barriers next to the F-22A.
There was also another that flew - with a reasonably impressive take off climb - better than F-16 but probably lightly loaded on fuel.
Note the snazzy - and no doubt very expensive - integral access ladder design.
Interesting side-by-side dimensions comparison F-22A and F-35A