This disparity in treatment would lead to Burt Ward doing stunts alongside West’s stunt double (who reportedly made more money for getting hurt), because the Robin double simply didn’t look enough like Ward for a given shot.
As a result, Burt Ward wound up going to the emergency room four out of his five first days on the set of Batman.
The irony of the situation is the fact that Adam West did not have to go through nearly as much hell during his time as Batman.
West was the face, heart, and soul of the 1966 Batman series, so the network made sure to keep him as safe and comfortable as possible.