Would attending this pose a security risk to him? Perhaps the event isn't being held in a location conducive to setting up and maintaining adequate security measures.
These trials could provide a convenient cover, shielding him from potential threats of assassination if he were to attend.
How often has Trump been legally prohibited from attending family events?
I'd like to see Trump set up huge screens so he could attend virtually....... and instead of sitting in the grad crowd quietly, the WHOLE WORLD sees the corrupt judge's rule.