u/very-few-choices

My parents had their interview yesterday and their visa was rejected on the grounds of 214(b). He was asked the purpose of the visit which is to visit for me and my wife and the duration for which he said 2 months. He was then asked for my visa documents and he provided my i797 which has a validity until Feb 2027. He also provided them with my bank statement and DL. He was then asked what he does to which he said he runs a small textile shop. He was asked for no documentation and the officer rejected their visa. I'm not a 100 percent sure what went wrong. Is it worth reapplying and if yes, what could possibly strengthen the case?

Hey guys! Planning to do a road trip from SF to Colorado. Plan to drive through Moab, mt. Blue skyline drive, red rock theatre, garden of the gods, canon city, Mesa Verde and back to SF. All this in 7 days. Thoughts?