Is RSV worth having in over 80 years old!

The short version: the evidence block is empty, so there is no basis to answer this question.

The retrieved evidence contains no studies, no trials, no safety data, and no efficacy data for RSV vaccination in adults aged 80 or older. Without a single record to examine, I cannot tell you whether the vaccine reduces hospitalization, whether it causes harm, or whether it is worth taking. The gap itself matters. A manufacturer-funded trial with a surrogate endpoint would be weak evidence. No evidence at all is worse.

My call: there is no evidence to support or oppose the hypothesis. Confidence: not clear. The absence of retrieved evidence does not mean the vaccine is unsafe or ineffective. It means the question has not been answered by the material provided. That is the honest answer.