We've been using trekking poles for at least 20 years. They have save our bacon more than once on rocky trails in Colorado and Arizona. At our age we now call the geezer poles. Wife got cocky in the Tetons in August and was walking on a trail that was an accessible trail. Decided she didn't need the poles. Guess what? She did a face plant and bruised her knee, ribs and wrist. She is ok but still kicking herself knowing she would have caught herself if she was using the poles.
Just an FYI on buying poles. Do not try to save money by buying bargain poles. Highly suggest carbon fiber for weight savings and strength. Black Diamond is an excellent brand to look at.