I'm retired and jury duty would be a relatively minor disruption in my life but people over 65 are exempt. I don't get that.
You must live in B.C., I believe that they are the only province that does that. Certainly more people over 65 get medical exemptions than the general population. Also note that a jury is supposed to be of ones peers, so if it was entirely people over age 65 that would be a very biased view.