If your knees are screwed up from “just turning 30”, then that indicates an expectation that you don’t need injuries to have bad knees.
Repetitive impact injury can screw things up, but the vast majority of people bemoaning their old age joints especially in their 30s are not exercising enough and/or are obese.
Whatever the case, bring it up to your doctor, didn’t assume changes like this are just normal/expected.
If your knees are screwed up from “just turning 30”, then that indicates an expectation that you don’t need injuries to have bad knees.
Repetitive impact injury can screw things up, but the vast majority of people bemoaning their old age joints especially in their 30s are not exercising enough and/or are obese.
Whatever the case, bring it up to your doctor, didn’t assume changes like this are just normal/expected.