Yes. I'm 64 and bike 6-8 miles to work most days year-round. I take a full flight of stairs at work many, many times a day. It's an older building with no elevator, but there is a driveway outside that functions as a ramp. But I enjoy the quick hustle up the steps. And when on location for video shoots (~one per week) I'll carry a little less equipment and make more trips using the stairs vs an elevator.

I know I can't do it forever, but for now nothing hurts (usually).